Some players just don't know what a good situation is and always have to look for something else. Vidal was king here, seen as one of the most important players in one of the best teams. Now he's just an afterthought in a good Bayern team having to cement his role all over again.
You guys don't realize how Beckenbauer is like, he is pretty much the disgruntled angry uncle of Bayern family. He hates on and roasts players on the regular, usually starts of with some constructive criticism to way too overly scathing negativity.