Board Thread:Warhammer 40k Novels/@comment-27376167-20151210113237/@comment-24091837-20160414083953

Even if the Tau were primatives in the eyes of the Imperium does not invalidate my theory, merely that it needs a slight adjustment. The primarch who according to my theory ran off to join the Tau, could have seen their potential usefulness for the future, & thus could be the one truly responsible for their philosophy of the Greater Good. He may have pushed to have them offficially considered as Abhumans by the Imperium despite them clearly being Xenos, but could not get any others outside his legion to see the potential benefits of intergrating them into the forces of the Imperium.