The @UNC game is twice in recent memory that something has happened at the last minute causing our band to not travel - it also happened @Duke (maybe 2009?). If I recall correctly, the Duke excuse was that they couldn't find a bus. Weaver wasn't specific with an excuse for UNC. But whatever it is, unless it involves a plague quarantining a large portion of the band or something similarly bizarre, the excuses get old.
Personally, I think the band should be at every road game. How often do you see an SEC game that doesn't have two bands? But if we're going to pick and choose, I'd rather we pick and choose the games that our fans travel to.