I've been following this closely, as CSU is local. What I CAN'T find is where this came from. That is, who's idea was it to make this change? Who noticed CSU was different than the rest of the CO colleges and brought it up at a board meeting? There wasn't an incident that brought it up. My guess is there's a anti-gunner who checks school rules all over the country to see what the gun reg is, and notifies the board.
As a little reported note: the CSU student board wrote to the board asking them not to change the rule.