There's a simple reason Texas-Texas A&M isn't big on a national level, and it's the same reason Texas-Texas A&M pales compared to Texas-Oklahoma. Basically, Texas and Texas A&M haven't played each other much when they were both good. Historically, one of them has typically been down, compared to Texas-Oklahoma, which have played a lot of games when both were considered good. The wins feel epic, the loses hurt, and the whole thing thus feels bigger.
Now, I'll admit that the scheduling alone accounts for some of that. Texas plays OU early in the season when the cumulative opportunities to shit the bed are limited. So maybe on of the two teams is inflated in the rankings. But it is what it is. I've really known the thrill of victory and the agony of defeat with Texas-OU over the years. I can still recall tiny details of many games. Most games with Aggie barely make an impression at all. If they're on TV, I watch them just because they're a Texas game. I don't give a shit about the Aggie side of the equation. And as cruel as it sounds, the most significant game-related impression Aggie has made in memory is offing themselves with the bonfire.
And yes, it was a tragedy, and the students killed had loved ones. But is was also an irresponsible, stupid, and completely avoidable tragedy.
I remember when the news bulletin first flashed that students had been killed in "the collapse of a large structure on campus." I instantly knew what it was. My other distinct memory is of a loathsome Aggy with no sense of perspective explaining to a horrified national reported that bonfire symbolized "our burning hatred of TU." Jesus Christ. Young people are dead for no reason at all, and they just can't quit. Even for a minute.