For better or for worse, this is the format for the Big Ten Conference (men's) for next season, when it too will have 7 teams. Taken from the Wisconsin State Journal,
http://host.madison.com/wsj/sports/...cle_f57b6d7a-52f7-5018-abc3-d882785bd40e.html
Starting in 2017-18, when Notre Dame becomes the seventh team in the Big Ten hockey league, all conference postseason games will move to team home arenas.
• The regular season champion gets a first-round bye, while the second, third and fourth seeds host best-of-three series.
• The top seed and the next-highest remaining seed host a single-game semifinal the following weekend.
• And on the third weekend, the highest remaining seed hosts a single championship game.
The new system was not only prompted by the addition of Notre Dame as the 7th team, but also because
"the first three years of a neutral-site Big Ten Conference men's hockey tournament generated unflattering images of empty seating sections in big, NHL arenas".
I'm anxious to see if the WCHA women's conference adopts something similar.