They don't go to the monitor because IA has little chance of going to the dance when MN is fighting for the tourney birth.
It's a shame that makes the game nearly unbearable to watch anymore. I know I've become more apathetic about watching college hoops as time goes on. This is a big part of it.
They absolutely should have gone to the monitor to see if he was out of bounds. They blew it and they blew the time out as well. However, it has nothing to do with your grand conspiracy about MN fighting for the tourney birth. It has everything to do with total incompetence by the refs.