The same nonsense happens in the horse "industry". There was a point where little feet were the in thing. Consequently. the poor horses were going lame very early in their careers. Now the trend is a hanging head and the horses no longer can move naturally, and you are absolutely right, if these trends were not pinned well in shows, this would not happen.
Breed little dogs, get BIG problems.
It's all about $$$$ not function.
