As an 8/10 raider ty for stating basic knowledge I never knew ever before. But I'll try again why would I want a shitty demo warlock when I can get an affliction. He'll trash the demo in dps, boss will die faster and everything else will die faster
Moredps=boss dies faster= less chance to fuck uo, you're never going to see a serious guild recruiting the worst spec there is of a given class with other choices.