During the Valentine's day event, same-sex characters could become the most loving couples on the server. The system didn't differentiate in any way, and Yoshi nor any in-game system acknowledged a "difference" in either way. And because of this, any potential haters either didn't notice or didn't care, because it could be chalked up to "it's just a game"

I wish they could have just quietly added it ; ;
But now that they've publicly stated that they may add it later, they've simultaneously acknowledged a difference, and that is the same as being against it because it places it in a different light and encourages unnecessary debate over whether our fictional sexless Barbie and Ken dolls can get married.
I mean the fact that at least 50% of MMO players play as a different gender than their own already slaps the issue in it's face in a realistic sense. Haters are quick to bash same-sex options,
but they conveniently ignore that fact that most of the population (themselves included) is trans-gendered.