To be honest hiding her face could be the best way to do this, Tataru was surprised to see how beautiful Yugiri was and a kind of "why would you want to hide that beauty from us" Eorzea is a place where diversity is all over from the playable races through to the beastmen, that's why overall we don't mention her hiding her face, as far as we know it could be a tradition of her people (think of the burka in Muslim tradition.) No one is surprised at what Yugiri looks like outside of how beautiful she is.

If for example you saw a Muslim woman wearing a burka, whilst being around others that don't wear it, if she then went to remove it around you, for whatever reason, having seen her all the time with her face covered you would be a bit surprised at what she looked like, for the first time outside of her being Muslim.


I don't think this is really an issue and it can simply be covered by the fact that it's the first time they have seen the face of the person, and not the first time they have seen the race.