... That sentence is hard to parse.

The comment I was responding to originally was you saying "nor is it religion pergurtory based.". I took issue with that idea because it seems like it's well within the realm of possibility that the show is in fact based on the religious idea of purgatory. Whether its reskinned as:

Alien beings watching humans progress, choosing who to evolve;

overlord AI watching human decisions deciding who to let out of the simulation;

advanced civilization choosing which people are good enough to join their utopian society

They're all based on the same theme of religious purgatory.