I think my biggest gripe with a potential male exclusive Hrothgar race would be that it's their very own original creation, and Square would be very actively choosing to genderlock it.

You want to cite "lore" or "past appearances/consistency" as a reason to genderlock Viera? Sure, fine.
But what reason could Square possibly have to genderlock their very own FF14 exclusive race? They, of all companies, should know what kind of shitstorm you bring about when you do something like that.