A flying tackle, now that's a serious fan.
I suspect a fair amount of adult beverage(s) is(are) involved. Though not too much as she is quite coordinated in the performance of that tackle.
She certainly was serious. I want to know what that young guy said to her because it was definitely a "dems fightin' words" reaction. And, yes, alcohol most assuredly was involved -- on all sides, I'd wager. But seeing her fly over those guys was funny as hell and the best use of that stupid song imaginable!
I don't know which is worse: a Big 12 fan with the impression they are entitled to a perfect season by Holy Writ from God, or an SEC fan with the impression they are entitled to a perfect season by Holy Writ from God.