Anne Sexton Spoof Question

I think Anne Sexton calls this poem a spoof because that's exactly what it sounds like. It seems like a dark, modernized version of the story of Noah's Ark. I don't know the story in great detail but it looks like the missile is the ark, the Ph.D.'s are the people (Noah and his wife), there are a set number of various creatures and supplies (similar to Noah taking two of each animal), and the atom blast that ended the last Earth war is the flood. When the Ph.D.'s and the other missile occupants set foot in their new home, it is very hopeful-as Noah and the rest of the Ark's passengers must have been when they first set foot on land, but this doesn't last. It seems like they were trying to play God and create a new better or perfect Earth by controlling certain variables. But just like the Earth is not perfect, neither is Venus.