As true as that is, I don't see Nintendo getting passed the idea that they don't want people abusing it. Remember last time they gave us an inch?You know what remedies voice chat issues? Party chat. All you hear is the people in your group. Nobody else unless you choose to listen to somebody else. It even took Sony until the PS4 to realize Microsoft had it right back on the 360, but apparently that totally passed Nintendo by. There was nothing keeping them from creating voice chat that only worked among added friends when in designated groups except Nintendo's unwillingness to conform to modern standards because they fear the potential abuses of technology so much.
http://www.nintendolife.com/news/20...potpass_service_due_to_online_safety_concerns
People abused it and Nintendo had to remove it. Thus they most likely didn't add nor want to add a voice chat feature for fear of the same thing.
I know last time I played any games with voice chat features, all I got was homophobic, racist, and sexist comments left and right, with very little actual communication going on. Which basically killed voice chatting for me.