I also don't see any reason why they would not be used by necromancers despite the utter lack of any zombies or other undead creatures (besides vampires). This could be explained away with a general difficulty using them for necromantic experiments plus a lesser supply of beast folk to use in Cyrodiil, though I would say it's more likely to have been an oversight by the staff.
My questions are: why wouldn't there be any skeletons resembling beast folk or other nonhuman or elven species, is it such an issue that it would effect your playing experience at all, and do you think this should be rectified in later games.
Thanks for reading, and responding if you do :foodndrink: