I hope Guardiola gets it better this time around, he should have learned from his mistake and what happened to Man City exposed the club and showed that people praised it too much. People thought every angle you play in Man City has an equal or better replacement, but injury and lack of feat this season have proven that wrong. However, your last part makes the most sense, Guardiola's side might have bought, planned to dispose and even bought more later, but this season is gone, I don't know how Man City can finish the first or second position again, so let's save the higher praise in action till then, that's if he ever got it right again.
Well, previously they had never felt something like this, at least in the last 4 years they have always been consistent, and people began to assume that their squad depth was very good, so it would not be a big problem when some of their mainstay players could not play. However, the reality is that this time they experienced a decline and it cannot be denied that the decline occurred when they lost some of their mainstay players, especially in the midfield which is the heart of their game. That indicates that their squad depth is not as strong as we thought.