Sports is entertainment and having someone to root against makes it more fun.
I mean, wasn’t it more fun back in the day when we had personalities like John Thompson, Rollie, Pitino, PJ, Calhoun, etc. to root against? Wasn’t it fun when guys like Steve Spurrier came to the Dome and we could direct our ire at him?
Love him or hate him, Sanders makes people care. In an environment where so many coaches are desperately trying to say nothing all the time, it’s fun to have a guy like him around who talks nonsense.