I beg your pardon. How do you know this? On multiple occasions, Texas was rolling and the LSU defense was gassed.
Texas did not score on every possession.
Indeed, on the possession I cited, the fake cramping almost certainly affected the outcome of the drive. Texas rolling, gets a first down, about to run another HUNH play, LSU defender fakes an injury, and not only does it prevent Texas from getting off the play within the perfectly legal rhythm and cadence of its offense, it ends up giving the LSU defense a free 3.5 minute timeout. They get to substitute, they get water, they get sideline and on-field coaching, they get 3.5 minutes of rest, and all without being charged a timout. The only downside is the player that faked the injury only sits out one play.
Result was a stalled drive for Texas, a missed field goal, and a turnover on downs.
This happened 13 times in the game, which resulted in LSU being granted 19 timeouts.
As I said before, I've never, ever seen a team get 19 timesouts-- all on defense, all when being abused by a powerful offense. I've just never seen that in my life. And I hope I never see it again, but I'm pretty sure I will because I'm pretty sure it's about to become the norm.