Another example happened even later in the game. IIRC, BYU was down 28-27 late in the 4th quarter. 4th down--game on the line. Everyone knows where the ball is going. Utah's dline stuffs the run for a loss. Utes take over on downs and a few plays later Shelly scores the final touchdown.
These athletes on both sides of the ball are all so good. I don't see either line "dominating" the other--although over the course of the game I expect Utah's dline to wear down BYU's oline like it did last year.