I don't know that I'd agree that it's "garbage"; IMO it's a legitimate issue to at least talk about. Public norms follow the law, in general, and the Rooney Rule has given people the expectation that black coaches will have "access" to the hiring process. It's considered a success in the NFL, so now people have the same expectations for college teams.
The problem with making direct comparisons is that the hiring process is completely different in college. In the NFL, it's all out in the open -- the Rooney Rule requires it, almost all interviewing and hiring happens in the offseason, etc. In college, though, there's all this cloak and dagger stuff going on. The public can't even tell who the serious candidates are, much less who's really getting interviewed, who has "access to the process," and so on. The standard college coaching search has the AD denying up until the last second that he's talked with anybody, and then abruptly here he is walking down the aisle with somebody else's coach. How in the world are we supposed to tell if minority candidates are getting "enough" access when that's the process?
I don't think Tennessee did anything "wrong" here, obviously. There's just no way to apply the standards of the Rooney Rule to the vastly different hiring procedure in college.
And your point about this scrutiny indicating that Tennessee is a high-profile job is a great one.