In a few years, could be that the NCAA committee is gonna have to do away with their rule of trying to purposely avoid seeding teams from the same conference in the same regional if among the Top 16 national seeds. Will be unavoidable if South Carolina, Tennessee, Texas, LSU are Top 16 mainstays, and teams like Georgia, A&M, Kentucky or others join them every so often.
NCAA committees for volleyball and softball don't "avoid" those matchups. They let the chips fall where they regarding seeding, and let the chips fall where they may. And, that ensures the integrity (balance) of the brackets without having to reward/punish teams by moving them up/down a seed.