I'm starting to get the impression that the merge narrative is spinning out of control and even chris can't keep track of this garbage anymore. Its too complex for him, so he's going to start using 'alternate sonichus' to explain every fuck up with this exceptional lore.
It'll be like how George Lucas used to use The Force, all purpose plot filler.
EDIT: Well, he already sorta doesn't have control of the merge's narrative. He's more like a moderator of a shitty RPG forum right now considering how many people are adding to the merge's narrative. He just goes 'yeah that's canon' or 'no, that's not canon.'