Not having the resources to do both genders for both races I understand. I still would prefer one complete race over two halves. But I understand it. I can get where they're coming from.
The lore angle however doesn't hold water. SO MUCH of Ivalice lore is changed in the FFXIV version of it that I simply DO NOT BUY the lore excuse for male viera. There is no reason on lore grounds for male viera to be the one sacred cow they cannot touch when they change so much of the rest of it.
When someons says 'we/they wanted to do two races and didn't have the resources to do both genders' I can understand and respect it.
Trying to bring up the 'lore' to defend it feels like a chap excuse all things considered and that annoys me.