Stats can be a wonderful thing, baby!
Since 1995, UND and Minnesota, both known for being offensive-minded, up-tempo teams, have played 40 times -- 20 times on NHL ice and 20 times on Olympic ice. Here's the breakdown of combined goals per game:
NHL ice = 175 goals (8.75 goals per game average)
Olympic ice - 136 goals (6.8 goals per game average)
For the math challenged, that's an average difference of nearly 2 goals per game.
So much for the theory that the larger ice sheet creates more offense.