Gender locked race?

[Beckett]

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You're putting the cart before the horse here. SE isn't trying to find reasons to justify adding male Viera even though it doesn't fit the lore, they created the lore as a justification to not add male Viera.

You can't even argue that they created that lore to justify why we've never seen any male Viera before. So far we've only seen one Viera in-game, who happened to be female. Going only by FFXIV, we'd have no reason to question why we haven't seen any male Viera, only why we've never seen any other Viera of any gender.

It's true we only ever saw female Viera in XII/TA, but that's a different continuity. There's no need for the lore of this game to justify the lore of a completely different universe. If SE wanted to add playable male Viera in XIV, they wouldn't have created an excuse not to.