Tam
Definitely some merit to what you're saying and we saw Pep take that approach to turn City's season around this year with him abandoning Silva as a LB or playing the other kid. But I suspect it was a needs must solution rather than him changing tack.
Personally, I remember those games against peak Barcelona where the 3rd and 4th best teams in the world were happy to just get into their half. Remember thinking 'if we can just beat their press their defence is shit' - but you spend so much of the game chasing shadows and giving away big chances that you never do beat their press. The few times you do you're so out of rhythm that you can't build a move anyway. It wasn't strong defensive players doing that to us, it was Basquests, Xavi and Initesta, attacking fullbacks and forwards who pressed but didn't particularly enjoy tracking back.
Personally I'd love to achieve superiority by being THAT team. Let the quality and the system do the defending.
FWIW I'm not fully convinced Havertz will be the left 8 and might just be a rotation option for Ode, Saka and Jesus. But personally I love the idea of him being in that position starting with the others, at least in some games.