Totally understand your point about intensity, keeping a run going, breeding confidence etc, all has merit and I'd be inclined to agree if we sent out our best 11 and did that. but that side whilst still being full of first teamers is at least half a dozen away from our best side and so i don't think its a problem for the players to shake that off instantly and switch back on for the weekend.
I also think peps prioritised using that as an experiment over keeping momentum going. I couldnt work out exactly what Pep was trying but First half especially we were set up differently than usual, seemed like he was trying something differently, fullbacks were tucked further in than usual and our 8s were a lot higher and wider than usual, whatever he was trying it's clearly not gone well but Peps always going to be innovating and that's the game to do it in.
As for the kids getting a game, it's unfortunate for them but they are in that environment daily, they know Pep doesn't hand out freebies and you have to work for it, most are 18/19 there's very few that get a sniff at that age even at lesser sides, if they're contemplating doing a Sancho they don't have the right mentality to be here anyway and won't be missed, they've got foden to look at as an example of how you get into this side, if he can bide his time, anybody can. we're not unique in this, most other top clubs are the same, you need only look at liverpools team tonight who are in the same situation, they've got 1 kid in and that's more down to a lack of options and the likes of Salah and mane and even Alisson are starting and they don't have the depth we have so you'd think they'd be more likely to play the kids.