If the undead are accidentally released and turn traitor, the divine power could be dismembered and stolen by more compatible deities. Worse still, it might directly transfer to high-level undead lords like the Giant Bone King or the Skeletal Dragon King, creating new gods from them.
The reason Gaven now controls such a vast amount of divine power and is developing swiftly like a snowball rolling downhill isn't just because of the assistance of the high-level divine artifact, War Plunderer, with the Undead Territory as a medium.
The main reason is that his actions here are exceedingly compatible with the divine power he currently wields; he has been incessantly killing, plundering, building roads — all in the name of undeath.
Gaven was able to extensively steal undead divine power from Weizemay Manor due to this situation.
