Because when his football finally works, it will be even better (at least I hope that's the case). As long as 60minutes trying his stuff and 30minutes playing the old way is enough to win games, I'm fine with it. I doubt it will work all season, at one point "his 60minutes" need to work as well.
His football has never been "better". Not even at Barcelona. The way you played last year was sheer beautiful. I've never been a fan of Tiki Taka and I think it's a mistake to try and get Bayern to play that way.