I never said those creatures originated in Warcraft, just that it's hard to avoid making a fantasy setting with at least some creatures that weren't already featured in that game. It was Revan who automatically associated dwarves and undead with WC.
The first duty of every Starfleet officer is to the truth, whether it's scientific truth or historical truth or personal truth! It is the guiding principle on which Starfleet is based! *Jean-Luc Picard*