A couple of quick points -
1 - Louisville is very physical. So is Rutgers. So are some other teams. This wasn't that.
2 - OTH - there was no logical reason for the player to do that - with a 30 point win, I don't think they were trying to send a message to the other team.
3 - So, I conclude - absent other evidence - it was a stupid play by a player who wasn't thinking straight at that moment. As an old boss used to say "it seemed like a good idea at the time". Like Prince, when she fouled a Stanford player for no reason with less than a second left in the game, at the opposite end of the court, to choose a "non-violent" example. Or Usha Gillmore, back in the day, who "put up her dukes" to fight an Iowa State player (again, no physical contact resulted - she didn't swing at her, just put up fists like a boxer - although it was certainly a "T"). It happens.