I only replied to what I believed to be the question, namely whether Tennessee deserves to be in the tournament somewhere. I think that's obvious, not merely on metrics but also because they're kinda fun to watch, and the NCAA has to consider that. Is the NET flawed? Sure, but it's not the only consideration the committee uses. Is RPI better? Maybe, but that's not germane to the question.
Does Tennessee deserve some special seeding? No, and neither does USC. But it would seem strange to exclude either of them. For one thing, both of them could probably win their first round and maybe second round games.