That is just awesome. Saw him in a small club in Hamburg last year and can highly recommend his shows - although I have no idea how they are going to translate into bigger crowds.
It must be frustrating to think of oneself as king of the knowledge hill, only to be reminded by life all the time that, well, no. Of course they lash out. Can't be them that is the problem.
I think, it's because Germans never really understood the need for cupholders, not somehow US customers kept complaining and at some point a product manager said "THEY STILL WANT MORE CUPHOLDERS? WE'LL GIVE THEM GODDAMN CUPHOLDERS".
That sounds easily avoidable.