My guess, though, is if you were told you'd be expelled from school if you were caught drinking a beer on campus before the game, you might have a problem with that kind of a rule. "Fun" is a relative term. I would also say that the community surrounding GCU is not one that is apt to ever step foot on that campus and I think something like 60% of their students are from out of state, so it makes sense that they'd cater almost exclusively to students rather than alumni (for which there aren't many yet -- the school itself is actually pretty old, but 15 years ago had maybe 500 on campus students? Maybe?) or community members.
I'm not sure how replicable what they do at GCU would be for Mason...but certainly campus police, the AD and university administration could be a little more forward thinking.
Oh, and Phoenix weather in January and February is multitudes better than Fairfax, can't forget that.