I think it's worth pointing out that when you start claiming that whatever God commands or does is, by definition, moral then any atrocity could be justified. Earlier, for example, you appeared quite comfortable portraying these hypothetical people as those who, ". . .curse, spit, and carry on about how if they were able, they would jump up off the gurney and rape and kill everyone in the observation room."
Let me paint another picture. Your hypothetical people undoubtedly had children. One of them was probably six years old and perhaps a girl. She had a favorite thing to do, a favorite food to eat, and she had a name. Her eyes had a certain color and there were some certain things that made her smile; that made her laugh.
She was drowned. Not by accident, but on purpose. Someone decided that her parents deserved to die, and because she was their daughter she needed to die too and they drowned her. Her blood was note "pure" apparently, and they felt that the human race needed to have its bloodlines purified.
One day it started to rain and the ground erupted and the waters rose higher and higher. There was panic and terror, people tried to find shelter and safety and could not. Perhaps her parents tried to save her and had to watch her drown while they struggled, or perhaps not. Regardless, she died in agony - afraid and gasping for breath.
To say that intentionally drowning a child is moral because whatever God does is moral seems, to me at least, to be a view that is utterly bereft of both empathy and merit.