People complaining about complaining too early and not during beta. WTF. Um beta for WoW is a very late develpoment process. Not a lot fo art changes in this time it's mostly last minute gameplay mechanics. This is why they let a large number of players access it.
Next point. This I may be wrong on but arn't these models completely separate from WOD? Arn't they just a game update we get regardless of if we pay for WOD? So that means there is no alpha or beta to judge how far in the development they are.
Don't give a fuck what the naysayers think OP. Keep going with your legit complaint. It's better to be safe and have them hear you even if they have already made your changes in a recent build than be sorry and they ignore it.