The lack of divine power is also why Legion was scheming against the angel of slavery as a demigod. If they were fighting the main body of the angel of slavery, they would have reasons to be afraid.
A ninefold enhancement is a big reason not to fight an angel. But fighting the slave of an angel of slavery is not much of a problem because those slaves won't have divine power even if they are enhanced by the Chain of Command divine ability.
So not only will other angels be able to easily deal with angels without divine power, but even demigods won't mind having a go at an angel without divine power. This shows the great importance of divine power to angels.
Aside from the increase to the power of their body, their spiritual power, and the addition of divine power, they also have the increase to their spiritual energy and life energy to show for their advancement to rank 9.
