At all of the first seven Ecumenical Councils, all of the essentials of basic Christology were debated. God? Man? Angel? Incarante? And Arianism was debated and condemned, only to keep being brought up and keep being condemned, over and over. Do not imagine that all the Councils and Synods debated was wallpaper designs, prior to August 2014.
Were sodomy and polygamy ever brought up at those earlier councils as topics of debate?
Of course not! Why do it now?
Francis, et al, are now stepping into questioning the Ten Commandments. Who is tempting God?