Nonsense. The Blue Devils (you might as well say their name if you're going to slam them) present the most professional product, year in and year out, and the high level of demand is an integral part of it. They're just not stupid enough to allow themselves to perform poorly by making the show *too* hard to pull off. That's sort of "show business 101", and the Blue Devils understand that perfectly.
It's kind of like a great broadway show, or a smoking jazz concert, or the New York Philharmonic for that matter. None of these *professional* ensembles allows any dirt to enter into their performance, and neither should a drum corps (in the name of "a beast of a show" or otherwise). The main objective is to put out the *best* show possible. Not the "almost coulda!" but give us points anyway 'cause we really, really tried!
The Blue Devils put out the BEST show, more often than the rest. Deal with it. I'd much rather see a professional show performed flawlessly than an overly difficult show performed at a sub-par level.