Good point there, but I think it's still true.But here's an example;
okay, so, Twilight is a nerd, she does magic, is very well educated and has pointy eyes.
If she were Asain people would flip it.
If she was white, people would flip it for the nerd part.
Also, lots of bronies would flip it if anypony was any race, because it wouldn't match their headcannon, they'd get upset that Hasbro gave them a race, etc.
So it would be best to just leave it.