I mean what happens if someone has poor eyesight and cant see as well then trips and breaks their neck or something. They might have grounds to sue UT because they didn't provide adequate light or something. I dunno. It's sad, but this is the world we live in now. Personally, I would like to see it for one game.
If it can be done in Los Angeles and NYC at their BB venues without serious legal repercussions I don't see why Knoxville would be much different. Maybe this is their reasoning though.