I believe this spins off from the fact there has always been males. They have been mentioned in each game, if I recall - with more information being given to us in FF14. The only game that stated them as strictly female was a fault in one of the guides. The males always existed, we just didn't see them. So I believe the logic that was followed was a series of events that transpired from comments from Yoshida. While people voted for Viera a portion of them assumed that Yoshida would not go back on his word regarding the gender lock. His two comments contradicted one another, as it were.
When he stated that he would have a male-only race to balance out Viera, there was a time gap - after that, his team produced concept art of a male Viera - which we saw. Add this to the fact that we obviously got a large amount of lore about the males that yet again solidified that they do indeed exist.
Now, we know that it isn't lore that's the issue here. The original creator of Viera has already basically stated that lore isn't the reason - they were never female only, you just didn't see the males.
So no...
Honestly, the same issue would have transpired even if they didn't add in Viera and instead gave us Lupin. We've only seen Lupin males so far, yet we know females exist. If they added in Lupins instead of Hrothgar - Lupin's being the race that was asked for most after Viera - we would still have this complaining.
Assumptions were made; we shouldn't have done that. I was one of them, but ah well. That's the explantion of it all.