That's actually really too bad. I would rather have had mixed race(s), like Hilda (Elezen/Hyur) - which would probably have no limitations.. than viera in this state. That sort of mixed race would not only be popular, but I also doubt they'd be limited. They'd get hairs and hats just like everyone else, plus look cool. A proper elf race. What could have been..
They add viera/hrothgar, then it feels like they completely forget about them. No updates, limited. Then they add in male viera - who will be just as limited, and then they are going to add another beast race gender - that probably won't be able to change their single hair without fantasia. While I like viera, I really question if it was actually worth the resources spent and will ultimately be spent on maintaining this race.
For example: Now instead of just creating hairs that everyone can use, they are making hairs that everyone else can use. On top of that - eventually - hairs that only viera can use, then, supposedly, new heads that male hroth can use (have to fantasia) as a substitute for hairs, then, again, heads that only female hroth can use!