Some people, mostly Rebels, expected the whole universe to change with the death of one Primal, but they were sorely mistaken about that. The death of the Primal didn't change anything about the weave or the laws of the universe. All it did was invigorate Michael, refining his body, mind, soul, and status.
The remaining Primal fled, allowing the gods spread all over the universe to use their Divinities freely for the first time ever. However, since most gods didn't perceive the death of Primal Xerx, they didn't do anything. Their lives continue as if nothing had changed. It would take years, maybe decades, or even centuries before gods hiding in backwater galaxies would learn about the death of one Primal. By then, many things would have changed again.
