But he knew that, in creating it, he was also creating the possibility of suffering
If a being is capable of creating anything and everything from the own will, how could they allow suffering to become reality? If creation from nothing is spontaneous and under their full control, why would they allow suffering to enter the equation?

It either means that creation is something that is not under their full control therefore does allow them to be completely omnipotent ... or they chose to create a reality with suffering on purpose which provides for some questionable ethics and morality (why create something that will suffer?)

He didn’t wish for suffering, but it was a necessary consequence
if an all powerful being is capable of creating life and reality out of nothing ... then you'd think they would have full control over the process. If there was nothing to start with, then how could side effects like suffering enter the process?