I think Hyurs should have a Garlean third eye customization option. New races aren't going to be added to the game, so I feel like it would be nice if this could be added. The two arguments I can see people giving towards this are "but garleans can also have an elezen body type" and "it wouldn't make any sense in terms of story". As far as the body type, I can't really argue against that, but something is better than nothing. As for it not making sense story wise, the main characters never acknowledge your character's race anyway, so I feel like it wouldn't really matter.