The frustrating thing about the two games that he really gets criticised for (Lyon and the Champions League Final) is that I think Pep diagnosed the issue correctly for both games, but his solution didn't pan out.
That Lyon team was exceptional on the counter-attack, and Pep sought to negate that with the setup. We didn't really have the personnel to pull it off, and it didn't work. The same with Chelsea. He knew we pretty much had to score first and so put out a team to do that and then retain possession. This time I think players being out of form really cost us, but I don't think the idea in and of itself was necessarily wrong, just the execution of it.
Pep took a lot of flak for those lineups because they didn't work, and that's fine, that's the job. But he also takes pelters for not changing things or having a Plan B. Basically he gets criticised based entirely on the outcome, rather than what he does or doesn't do.