I have some very strong feelings about this.
The games are choreographed from start to finish and there's no spontaneity.
You watch games on TV and the band plays all the time, accentuating what's going on in the game.
I exchanged e-mails with the current band director a couple of years and I could sense frustration in his replies with the inability to perform in that capacity.
It is insulting to have a live band and all that canned music playing. It's embarrassing. When time is so limited, there aren't many opportunities to pay more than the standard fare.