Those W/L numbers aren't surprising. A&M's whole reason for being is to beat Texas. It is deeply ingrained in their culture. The majority of their chants and songs are about beating Texas. They sing them even at games against other teams. Don't believe me, look at the Aggie War Hymn:
Aggie War Hymn - Wikipedia, the free encyclopedia
Yes, their whole fight song is about an obsession with the University of Texas.