Watching college football is very rarely a purely partisan experience.
No matter which squad is your favorite team, they will only play about a dozen games, maybe a couple more if you’re lucky (or maybe if they’re lucky).
But no college football fan only watches a dozen games. I can’t speak for everyone, but since the college football viewing window is such a limited experience, lasting only from August through December, if there’s any random college football game on during that time span I will usually tune in. It doesn’t matter who’s playing, I just want to watch college football.