One of my favorite things about doing movies is that you get to do different things you'd never do in real life.
Dance is for everybody. I believe that the dance came from the people and that it should always be delivered back to the people.
But it seems that the judging maybe they shouldn't at least see the practices all week long. That can taint the way they go into the judging and the outlook of what's going to happen, instead of just watching those four minutes and judging on those minutes alone.