You're not wrong about the Reddit and MMOc shitstorm that would follow a new Horde race and no Alliance race. That said how much does that really matter if it makes sense for the game? realistically these communities are the minority of the player base. That said it's the most dedicated part of their player base so upsetting them probably isn't a great idea. I'm not sure. Personally I'd be okay with it. I think a forced "equal" allied race for the opposite faction would be worse in the long term.