If UTK was indeed forwarded information that the hostesses went to South Carolina, and they didn't self-report the violation, then yeah, you're getting into "institutional control" issues at that point. The girls' trip is probably nothing serious. The recruiting intern thing is probably nothing at all. But failing to report a secondary violation when your program is under the scrutiny that ours is under right now? That's something. It's hard to see why that would fall on the coaches rather than the compliance office, but ultimately it doesn't matter.
The NCAA is not going to walk away from this empty-handed, not after all this press. Kiffin isn't going to be allowed to gloat about being found completely clean. Going back to the health inspector analogy I used -- if you own a restaurant and you piss off somebody on the city council, a team of health inspectors is going to show up. Maybe they won't be able to find enough to shut you down, but they're going to find enough to make you squirm for awhile and have to post that nice big "82" up next to the cash register to embarrass you.