i can't decide if she's "chimping" or actually trying to keep taking pictures, i personaly chimp all the time, if not the image then the histogram, although the 20d is only a 1 line histo, the 3 color is where it starts to be really useful, i think the people that look down on the practice are photo/gear snobs who feel they get it perfect the first time out so no need to chimp. truth be told i'll bet their percent of keepers might even be less than the rest of us mere mortals, and i'm not about to stop doing it. the only downside is it does lessen battery life. i do it mostly to verify how i'm doing on colors, lcd too small to really get a feel for the sharpness.
gary