Nintendo is facing widespread controversy and backlash over the exclusion of gay marriage or same sex relationships in Tomodachi Life. It even led to a campaign called #Miiquality, but it ultimately did not succeeed. However, the company posted an apology today and promise to their fans that they will be more inclusive if they make a sequel.
We apologize for disappointing many people by failing to include same-sex relationships in Tomodachi Life. Unfortunately, it is not possible for us to change this game’s design, and such a significant development change can’t be accomplished with a post-ship patch. At Nintendo, dedication has always meant going beyond the games to promote a sense of community, and to share a spirit of fun and joy. We are committed to advancing our longtime company values of fun and entertainment for everyone. We pledge that if we create a next installment in the Tomodachi series, we will strive to design a game-play experience from the ground up that is more inclusive, and better represents all players.
The company cited technical reasons behind the exclusion and it didn't seem like they were excluding same sex relationships just because. We can only hope that Nintendo lives up to their promise if a sequel does come.
Yesterday, Nintendo commented on this in an unoffical statement that touched upon more or less the same thing.