Why can't helmets and such have holes for the Viera ears? I'd be OK with that. In fact I prefer that for Miqos, or my Elezen ears instead of those darn ear socks. Aaand had they done male Viera, they could have used that same technique for their helmets, and thus saved a lot of time (if that's how it works).
But they did Roethgar instead. It seems, to me at least, like that have increased the work load.