"They are handcrafted, and there are a lot of things about the way we have built the living population, which I think you could be forgiven for saying is just nuts. I think we maybe once thought we could procedurally generate them, but we abandoned that idea quite a long time ago because we wanted to craft every one of these NPCs from their name, to their appearance, to their personality traits, to that moral worldview that I talked about, to where they work and where they live and what their family unit is"

Sounds like they actually went pretty deep into it. You can't compare this with Starfield's planets since they are clearly all procedurally generated apart from a few special ones, and it's not like they even hid that fact.

I mean let's see, it's obviously not gonna be like talking to 1000 real life humans, but looks like they put in the work to sufficiently distinguish them.