I had two thoughts about the plot threads it introduced.
1) Entirely made to attempt to justify their ending.
2) Fucking ridiculous.
So the Leviathans noticed that all the species they enthralled were creating AIs that rebelled... so to counteract this... they created an AI. Which rebelled. Face fucking palm.
That said, I guess the gameplay was still solid. But my god, they need to just fucking stop.