Last night, a few guildies and myself pugged a myhic dungeon. Myself as a DH tank, one DH DPS and a healer. We needed just two more DPS. We spent about 5 minutes filtering through all the DH's to end up with a Mage and Druid. I wasn't leading the group but the guildie that was already had the stigma of "DH noobs".
I do feel sorry for those DH's without guildies to do this stuff with and relying on PuGs but realistically, what did you expect with a brand new class on day one?