It was fine until I got the actual ending slides! But I am pretending my lizard just went along with him. Like, releasing the Source for everyone is the only one where he doesn't cheese you out in the conversation you have on the Lady Vengeance after the choice. The slide does say he disappears once the planting is done - so maybe he comes back to you.
He's earned it, in my opinion.
I chose to become Divine to see what would happen, and he was like "I can't serve another Divine" and leaves, so it makes zero sense he would come back in the ending slides???