I'd agree, although I hated the games a couple years ago when every ticky tack thing was called. The players did adjust, and, much like the NHL, the WCHA games were better for a short time. Unfortunately, the league has come full circle and the holding and outright tackling that can even up games is now allowed, and, the league will be starting from scratch if they decide to go by the rules, once again.
The top players will have more freedom in the NHL than they now do in the WCHA.
At any rate, the let em play attitude of WCHA referees may serve the Sioux well when they go to Denver, they've had some good experience (UAA, Mankato, Wisco, and MTU, especially) in what they'll see at Denver, who are back very close to the tackling team they had three years ago. A one-sided Campion display could decide the series, if that were to happen.