Some of these small teams barely have enough students to put a team together. I would guess there is pressure on the few students there to participate, even if they don't really want to. There's no reason to rub their nose in the dirt for doing something they may not even have wanted to do in the first place.
I'm all for doing our best and letting the chips fall where they may, but there is a point where further scoring serves no purpose whatsoever. This is one of those times. It's okay to beat a team, and beat them badly, but why break their spirit? It's called sportsmanship, and it's why football teams keep it on the ground and run inside plays when they have a big lead... to run down the clock to mercifully end the game. It's why they take a knee or two even if they could obviously score again.
Sure, beat them...beat them soundly, and let them know who's the better team. I love it when UK does this. But in the end, also show that you can win with class and dignity. We were human beings before we were athletes, and we will be human beings afterwards.