Oh look, someone else who thinks that the art team works on gameplay issues.
Look, here's the thing: It really doesn't take that much time to tweak these skins. No it really doesn't. Yes, you would have to test them to make sure they are wrapping correctly, but we're not asking for brand new skins, just refinements to the ones we have. And they should have had proper faces to begin with.
Erm... but that's the problem. The other races already DO have this, they DO have distinct faces, and pandaren females don't. That's why we're so annoyed. They wouldn't have to go in and give everyone else... what they already have. Because they already have it.