The Deets is a weekday morning dose of commentary — delivered at 7 a.m. — from sports columnist Dieter Kurtenbach that wraps up everything important in the world of sports and looks forward to another crazy day ahead.

Well, the 49ers lost.

And, as you would expect, the hot takes are flying.

Let’s make sense of all the reactions. Here are a few overreactions — and a few things floating out there that are valid — following San Francisco’s 25-20 loss to the Eagles:

Overreaction: There’s a quarterback controversy

Do you want to know one reason why trust in the media is so down? Some folks out there were writing and speaking with dead-serious tones about Nick Mullens being a better option for the 49ers at quarterback than Jimmy Garoppolo.

Now, Jimmy G is hardly a perfect quarterback, but when he locks onto first reads or throws egregious interceptions, he usually follows those errors with above-average play, and sometimes an off-script gain.

Nick Mullens does not provide that upside. Never has, and — sorry to pile on — surely never will.

Sunday night was the first time that the 49ers’ backup quarterback and temporary starter faced a competent NFL defense since 2018, and his inability to convert much of anything that wasn’t his first read — that downside — was glaring.

The only quarterback controversy the 49ers might have is between Mullens and C.J. Beathard. The latter came in cold to Sunday’s game after Mullens’ second pick and gave San Francisco a chance by driving down the field against Philadelphia’s prevent defense.

Feel free to have conversations about who should back up Garoppolo away from me. If either quarterback is in the game, the team is playing for second unless they’re playing a wholly incompetent team.

And as we learned Sunday, that bar is quite, quite low. The Eagles aren’t good, but they picked up their first win in Santa Clara.

Not an overreaction: Fred Warner is an elite NFL player

The 49ers’ defense is predicated on defensive line play, but with a defensive line that’s absolutely ravaged by injury, coordinator Robert Saleh is dialing up more blitzes from every which direction to help put pressure on the opposing quarterback.

This pressure actually materializing is vitally important because the Niners’ secondary is ravaged by injury, too. Sunday, they played Ken Webster, a cornerback who — I won’t lie — I had to look up early Sunday morning.

The secondary played fine, all things considered. The defensive line had its moments, too. But the standout performer on defense Sunday — and all season — was middle linebacker Fred Warner.

The BYU product has been arguably the most underrated player in football since around this time last year, but his ability to rush the passer is the glue that’s holding the Niners’ defense together at the moment.

Saleh was keen to blitz Warner more often from the A-gap early this season, but now the middle linebacker is lining up on the end and holding his own against solid tackle play.

The 49ers’ defense is beginning to revolve around Warner and his prodigious abilities. That’s a good thing moving forward.

Overreaction: Trent Williams is washed

Williams had a no-good, very bad game Sunday.

It wasn’t as if there was a bad matchup, either — he just seemed to never have his feet under him the entire game.

Perhaps having Mullens and Beathard at quarterback gave him flashbacks to playing for the hapless Washington Football Team.

I wouldn’t read too far into Williams’ terrible game, though. Everyone is entitled to a bad game, and he’s been fantastic in the three other contests this season. I’ll bet on the seven-time Pro Bowler to turn it around in Week 5 against Miami.

Not an overreaction: Mike McGlinchey’s time at right tackle needs to come to an end

I’ve been trying to defend McGlinchey, despite an unquestionably poor start in pass protection to start this season. But his performance Sunday was abysmal, particularly late in the game when it was clear that San Francisco had to pass.

The book is out on the right tackle and I’m afraid that unless he makes big changes in a short period of time, he’s going to continue to be barbeque chicken at right tackle.

McGlinchey came into the league questionable in pass protection because he lacks a long wingspan to go with his 6-foot-8 frame. In fact, plenty of evaluators before he was drafted said that he might have to play guard. Yes, even at 6-foot-8.

McGlinchey has been an above-average right tackle for the 49ers, though, because he was a great run blocker. Get that guy in open space and let him run dudes over. It’s a valuable skill, and the Niners love running the ball, so the pluses outweighed the pass-protection negatives for San Francisco.

But there’s a reason McGlinchey was never viewed as a left tackle option by the Niners.

The Notre Dame product used to have problems against the speed rush. His lack of length and a slow step back allowed guys to run around him.

This year, he looks lighter — I’d guess he’s playing at under 300 pounds. And his lighter weight is allowing him to get into position against speed rushers.

The problem is that now, he is simply being overpowered by defensive ends.

It started in Week 1, when Chandler Jones had a field day when he lined up across from him. This week, it was Genard Avery who worked him over. Avery had five quarterback hits in the game and was in Beathard’s lap on seemingly every passing play on the 49ers’ final drive.

Losing to Jones is one thing. But Genard Avery? That’s a problem.

I don’t know if there’s a sweet spot in weight for McGlinchey — if he can add a few more pounds, be able to anchor again, but keep the foot speed to stop speed rushers.

Perhaps.

But Sunday could well be the final straw. His pass protection is too much of a liability, especially with an injured quarterback in Garoppolo likely coming back next week and everyone now knowing what they need to do to beat him.

We’re three years into McGlinchey’s NFL career, but those naysaying analysts might have been right. He might have to slide inside and become the NFL’s tallest guard.

The Niners need to at least explore the possibility of swapping McGlinchey and right guard Dan Brunskill — who was solid at tackle last year — before the Miami game. The current situation is untenable.

Overreaction: The 49ers’ late onside kick cost them the game

The 49ers attempted an onside kick with 2:02 to play, trailing by five points Sunday.

With two timeouts and the two-minute warning remaining, it was questioned why the 49ers would not just kick the ball deep and play the field-position game.

Well, because kicking the ball deep would have given the 49ers a next-to-nil percent chance of regaining the ball off the kick.

One first down was likely to bury San Francisco. No matter where on the field Philadelphia started its drive, the Eagles were going to run it three times and see if they could get a new set of downs. If not, they were going to punt.

The onside kick attempt — a drop-kick chop worthy of another try this season — was the smart thing to do, so long as you’re a fan of taking matters into your own hands.

What did lose the 49ers the game? How about Mullens throwing the ball directly to a linebacker in zone coverage two series prior?

This is just the start of it. For my full breakdown of everything that happened in the world of sports over the weekend, previews of what will happen today — including Game 1 of the A’s-Astros ALDS series, and my best bet (it’s a lot), subscribe to The Deets to be delivered to your inbox every weekday morning.