At this stage in the story, Warlocks are getting the reluctant greenlight from the Alliance and Horde, but necromancy is still the biggest, most awful taboo due to the recency of the scourge. If the events of this game mirror those of the MMO, eventually when the deathknights of the Ebon Blade defect from the scourge, the inroads for practical necromancy for better living will be paved in both factions. :( Hope that's not too much of a downer.