Well I was thinking it might be fitting as a final reward from Heavensward, like an Au Ra coming of age spell that grants a pair of wings(since in final fantasy dragons tend to have wings..) that just happens to work on other races.

Why won't I be happy with just a flying mount? Can't gather/fight/go into dungeons on a mount, I'm just thinking potential added content. Also wings shouldn't be visible unless your flying or use /wing emote.