On the student attendance:
I think since we are sports fans (otherwise why would we be on CF?) we take for granted that ALL students are as well. They are not. Both my kids went to ISU; one boy engineer, one girl liberal arts. Based on their friends and acquaintances, I'd estimate about 50% of students don't like sports at all, even casually, and will actively avoid games. Maybe 10-20% actually care and follow football and bball.
On the Kansas band:
give them a break, this was the biggest crowd they will ever get to play in front of!