What type of booster wouldn't recognize the secondary coach?
That type of interaction would be just as likely to occur at nearly any college in the country. I don't want to stereotype here, but my assumption is that boosters (i.e., people who can afford to give a lot of money to a football program) probably aren't the most the most diverse group of people.
Between Nebraska and TAMU, if you picked the school that has historically had diversity issues, it wouldn't be Nebraska.