I happen to know a little bit about the trail map. the owners were disappointed that it was not ready for the lift opening. Basically there was a product they decided they did not want to go with that. Wolfcreek is a mom and pop operation. I have not been to many mom and pop resorts to compare. But there is a hell of a lot going at Wolfcreek for a mom and pop show.
As for the open policy. Why would a skier complain about terrain being open? read Montana thread. If coverage is questionable ski it carefully. If you want to rip ski the groomers. Also don't ski anything south facing.