People have been saying that about games since FFXI or older. It's been years and years and 3d modeling and rendering technology has gotten way beefier since then.

From what the community reps have say, it sounds like it isn't so much impossible and more that the devs are focusing on pumping out lots of gear instead of doing quality control.

The gear has to be re-sized and edited for all the races anyways. Taking the time to figure out what tweaks need to be made so dresses/skirts/robes/coats look just as good when walking or running as they do on a standing character... once they know how to do it with one long piece of gear, they can apply their knowledge to other pieces of gear down the road.