I wanted to just chime in here and say when I did the Mix workout, I barely looked at the screen. I may have glanced at it a few times but not enough where the white bothered me or to notice that she wasn't doing most of the workout. Watching the Collage clip was annoying for me (and funny at the part mentioned before "left, center and left, center and left...") Doing the workout was much different.
At least in my experience.
ETA - what really bothered me though (and I mentioned this in a different thread about it) was that the workout starts right away. There's no menu, no chapters, nothing. It just starts.