I know it's basically cliche at this point to bash NHL officiating, but I would honestly like to sit down and watch a game with Stephen Walkom and ask him to explain these kinds of questionable calls (and non-calls), and how a guy that has a history of doing this still has a job. This kind of inconsistent stuff has been Devorski's MO for years.
I'm even willing to give them the benefit of the doubt on calls like the phantom slashing call on Matt Cooke. It's a fast game. Mistakes are going to happen and I get that. It's the obvious ones that kill the game like the missed trip/cross-check on Zigomanis and the spear on Miller. In both cases, clear penalties were committed, both happened in plain view of the officials, and while no one was hurt on either play, both were really dangerous.