Well, the world doesn't know it yet, that the Divine is still alive and there were a few theories posted that the god we see isn't a god, but the Demon Lord of this Universe. Could work, since he could create independent parts of himself (The Demon of Lies) and would fit into it.
OR the gods do also not know, that the Divine is still alive. All good questions
.
As for the Godwoken: I think they want to combine it with the making of the Divine in the first Divinity and the background story of the Goddess of magic: the first Mages were half-gods and maybe Sourcerers are direct descendants from them and that's why gods can live in them.
