He sticks to his guns and fair play to him for that. He has a terrible record against Klopp though. The press kills his teams ability to play out from the back, then they got cut to ribbons with the speed of the attack. The one time he did beat Klopp (5-0 earlier this season) the RS were all over them prior to Mane getting sent off, the press couldn't then be effectively implemented with one man less so City were afforded plenty of space, and at home against that defence it was always going to end in a hiding.
So there is a flaw in Pep's style. If he had to face a Klopp side every week he wouldn't be winning anything. The issue then is can other teams emulate what Klopp's can? Surely the other top five can. Mourinho would need to change his negative, pragmatic style though as it just doesn't work against Pep (bar that one time with Inter when he nicked the result). Don't give City space to play out from the back, and hurt them when you get the ball.