I am a big fan of Guardiola and like Toure too. We dont know what happened or etc so it is better to just let it go and not comment on it.
As for Guardiola having an expensive team, he took over a team that had old players and others who were not playing great . He had to buy players and it happens during the time that players are super expensive and his strategy needs player who are smart and can play his game. Regardless of what he does, he will always be criticized but truth is he has his great style of game that dominates and beautiful attacking football. When he came to England many here and elsewhere said he will not succeed, doesn't know how to put a new team together, and he was just lucky to take over at Barcelona and Bayern. Others said it was because of Messi and xavi and Iniesta.
Guardiola will always be criticized regardless of that he does . Greats like Guardiola and Cryuff keep their heads down and go on changing the face face of football and how it is being played. , Their philosophy and strategy has influence on every league and team. While the rest of us sit in the stands and criticize them. Luckily, it does not effect greats like Guardiola and he will goes on continuing playing great football and changing the way game is played.