Listening on the radio, it sounded like typical WCHA situational officiating. It's the way Bruce McLeod and Greg Shepherd like it to help maintain league parity.
And before any Gopher fans get their halos bent out of shape and jump on me, the NCAA rules committee recognizes that the game is called this way and is trying to put a end to it. But what the NCAA says and what the WCHA does often seem to be two different things.