I think i heavily disagree given the entire point of the movie is "what is life anyways". Roy choosing to spare deckard isn't becaus of some programming, he's real. He's a person. And like wise so is deckard and rachel, even if they are/aren't human.

It's a really fascinating look at tech that's gone so far we really don't know how to identify the difference, or it's more than possible at that point there isn't one. The sentient AI isn't some super machine that's going to build the singularity. It's "artificial" people forced into short lived slavery in a world that couldn't begin to give a damn about it.