Some thoughts which may be one-off game stuff since I haven't watched a single Bundesliga game this season (though have watched these teams in Europe a few times):
-Tuchel taking criticism seems fair, tough to have a game where you play a RB at LWB with 3/5 at the back and your team just can't progress the forward at all until you go down 2-0 and the other team is happy to sit back. They constantly ended up with Boey on the ball on the left touchline under pressure and it always looked more likely to create a Leverkusen chance than anything positive for Bayern. Guerrero at least could hit it up the line and maybe you're getting it to Kane or forcing some 2nd balls.
-Dier just too slow. Terrible matchup for him without a striker and just a false 9 and 2 speedy little fellas running around out wide. I assume this is how Leverkusen play without Boniface and if so, that's another mistake from Tuchel. Be like us using Maguire against that type of opposition setup and that would scare the hell out of me (it did even against West Ham but we played well and he didn't end up with Bowen running circles around him).
-Be interesting if Alonso gets the Liverpool job as on this evidence and a little of what I've read (Cox had a piece I think?), it would be a pretty big change in footballing style, but certainly his team looked really clear in what they wanted to do on and off the ball which is all you can really ask for.
-Wirtz's first touch looked comfortably the best on the pitch and honestly as good or better than anyone I've seen other than maybe when Bernardo Silva is on form or Modric is still cooking. Just never looked like giving the ball away and knows where everyone around him is. Almost Zidane-like without the size and strength.
-Grimaldo was probably even better, just looked clearer in how to progress up the pitch than basically everyone else on the pitch save Wirtz, and even quicker in his thrusts forward.
-Though Kim was the best of the Bayern players, though that isn't saying much. He moves well for his size.
-Typical Kane when he's not a factor game where he gets no service but it's partly because he's not athletically gifted enough to get touches without the ball being played into him from someone fairly nearby so he's always coming short instead of varying his runs more.
-The lad Pavlovic looked scared to play the ball forward but also he's 19 so that's fairly normal. I do think Kimmich playing would have made a difference in terms of giving Bayern some sort of hold in the game rather than it being so one sided.
-Upamecano apparently still has truly terrible games in him. Tella beating him in that duel before the 2nd goal felt (in retrospect) like the moment the game was fully lost.
-Football is funny in that Leverkusen were sharper but what that literally turned into was a couple moments where they managed to hit nutmeg passes through some Bayern defenders to assist both goals. A reminder of just how incredible top footballers are. It's one thing to consistently hit hard low passes through defenders leg in a 7 a side game on a smaller pitch, but in 11s I can't imagine consistently doing it without giving the ball away and creating counters for the opposition so often you don't even think about risking it.