Is it now official that chelsea play the most ugly football in world..?

I think everything you've said is right on the mark. I don't think Chelsea's performance will decrease football support around the world, though. I think it will just decrease Chelsea support around the world. Which is a damn good thing because the world really doesn't need any more Chelsea supporters who delude themselves into thinking they deserve to make the final after such an ugly display of football in which they effectively admitted they can't keep up with Barca.