Why cant we be any race?

[Frara-blood-furnace]

Dracthyr's visage is distinct for a reason (Spoiler)

And that reason is yet unknown to them. However some conversation can be found on the beta between Cindrethresh and Azurathel, the Dracthyr representatives from the Horde and Alliance. They talk about it a little bit. Cindrethresh: Zury! I wondered if I’d recognize you in your visage. But somehow I just… knew it was you. Azurathel: I felt the same sensation. Your visage suits you well, my friend. Cindrethresh: It does, doesn’t it? Ebyssian said to look inside and let the magic within express…