Who knows what really goes on in the hearts of ......
I'll say this. It would be irrational on Tennessee's part to discourage Tucker, whether they did or not. Opposing coaches would have a field day turning the fact that they discouraged a top ten player against them. Plus it's irrational to recruit a player in the first place who you don't think will handle well that you are going to bring other top ten players in. The most "rational" scenario for Tennessee backing off would be if Davis had issues with Tucker, but even catering to a highly regarded recruit like Davis is irrational (can you imagine Auriemma doing that for a recruit that has yet to wear the uniform)?
It also would be odd for Tucker to decommit now in apprehensive reaction to the recruits that recently visited. A player does not get to elite status and get selected to USA teams by being afraid of their competition. The most "positive," somewhat rational spin I could see on this is that Tucker has chemistry issues with someone like Davis, and even that's not a very "positive" reflection on Tucker, even if there is nothing "negative" for Tennessee in that particular scenario.
That's a long-winded reiteration of "sometimes a bowl of spaghetti is a bowl of spaghetti."