The band does get people out of their seats to go buy stuff at the concessions.
If BYU’s band was good, entertaining, or audible, that might be different. They probably need to double the size to make it effective. I don’t think song selection matters at all as long as they sound good. But from an acoustics perspective, it sounds like a middle school band from the stands.
The whole point of a band is to sound impressive. Our band doesn’t, so it completely misses the point.