Au Ra have special characteristic scales all over their bodies. Hrothgars have fur patterns of all kinds, and have an absurd lack of other options of customization with other means besides. That aside, plenty of gear and glam invites to showing off e.g. your chest, has been the case since ARR. And there are plenty of cutscenes where the body - covered or not - is very much visible. Updating the body is far from "unnecessary".
