I'll bite in this discussion. Usually I won't because in the scheme of things, this is one game out of a long season, So, unless I am putting the life savings on it, which I would never do, it doesn't much matter.
UAB schedule not as tough, no doubt. But they have been dominant on D against these lesser foes, especially last 4 games. What happened in September is somewhat irrelevant. If they were average, then scheduling is an argument. Will they be as dominant against Tennessee, probably not, but I wouldn't call Tennessee offense a juggernaut. Same on the other side of the ball. Tennessee no juggernaut on D either. This is a matchup between a mid tier SEC team against an upper tier non Power 5 team. I can guarantee that Tennessee has more 5 and 4 star recruits and more talent. But that isn't automatic blowout.
I come back to the discussion about the line itself. Linesmakers don't hand out gifts because they feel like the betting masses need a win. Not how it works. Laughable to think it does. The opening line is where they think the difference between these 2 teams is. We wager because we think we know better, and sometimes we do and sometimes we don't. But, if you "know better" 60% of the time, you are a genius, which still means you miss a lot of these games.