I was a Lore Dev when all this was talked about. There was a book about marriages that I was part of editing. It specifically said only child baring (aka, opposite sex, other than Kran) marriages where recognized. The book will eventually make it into the game. Who knows if that part will be edited out or not.
However, your strategic use of 'lol' and 'fail' has obviously defeated me in intellectual combat. I take my leave, beaten and battered by the wounds of pure ignorance you have inflicted upon my unworthy self.
~Underthemoon, previous Lore Associate Dev and writer of such texts as Song of the Lemur, The Five Branches of Lannx, and several other hidden texts, as well as others still in line.
As for the 'why' Atagal asked about? Rules change. I doubt you will get a reason.