The moment Kriemler was stripped of the Authority, the planet immediately began resisting his entry, pushing back and squeezing the rift shut.
With the modified World Magic spell beneath it destroyed by Kolvar's initial attack, the channel through which the rift had been draining the planet's energy from the hotspot below to stay open was severed.
Now, Ginaroad's Authority, acting on the rift through Kriemler as a proxy, had also been purged, the effect of Decimation of Blessings preventing the Demon King from reapplying it immediately.
This removed the bulk of the forces that had been keeping 'Aidos' from forcing the rift shut before it could stabilise, and now the planet was actively trying to do just that, or at least shrink the rift as much as possible.
