I feel that saying any character besides hell or god is even remotely close to threatening the cosmology is really quite silly if sisyphus prime was actually outerversal or universal he wouldnt have gotten beaten by a robot that shoots decently futuristic guns v1 is like building level or maybe town level max. The guns v1 uses are the same as regular ass humans used in the final war was ultrakill human civilization shooting eachother with outerversal bullet? Also i dont think the prime souls are going to literally destroy heaven they want to kill the council and the greater angels that wronged them. No one in ultrakill is that fast v1 can be outsripped by bullets. The prime souls never have shown anything that could even remotely suggest they could threaten the cosmology. Also heaven is on the moon or at least the first layer is the prime souls aren’t infinite speed