I suppose those people at least helped get you in character for DRK.
I know the feeling but on my DC it's mostly the DPS that leave me stupefied with their ineptitude.
Healers and tanks do fine for the most part, and when they don't it's so bad that getting angry is not going to help. In those cases either them or me will leave the party. (What is it with undergeared people lately, the brand-new set in a level 45+ duty, really? Do your bloody job quests already!)