Those of the Anu who were cast out, found themselves lost and stranded on the surface of Earth. They lost access to the skies. They walked the earth and ate only what they could grow in the dust of this Earth.
It was a very difficult time for them. With no tools, no technology, and no resources, they were forced to hunt and grow their own food and live like savages. For people who had only ever lived in an advanced civilisation, this was an enormous challenge. For a long time, their only focus was recovery and survival.
In the meantime, the ones left on the ship continued arguing about who was in charge, and scheming against each other.