Don't kid yourself, all those steps have AI heavily involved in them.
And that's not necessarily a bad thing. If I set up RAG correctly, then tell the AI to generate K samples, then spend time to pick out the best one, that's still significant human input, and likely very good output too. It's just invisible what the human did.
And as models get better, the necessary K will become smaller....
That's a strategy for producing maximally convincing BS content, but the scientific method was absent. I'm sure it was an oversight... ; )