You CAN'T put it all on that 1 call; that's making the assumption that UT would have scored right there, and there's no guarantee they would have.
Even if UT had scored, a 2 would have only tied it while a 3 would have given UT a 1-point lead, with OM getting the ball back. There's no way to say what the final outcome would have been either way, right call or wrong call.
Yes, the call was terrible, and it had the POTENTIAL to change the outcome of the game, but certainly didn't cause UT to lose... 28% from the field did that, along with launching 34 3's, like the OP said.
UF is a 3-point shooting team, and we didn't even take that many today (10-30).