Yeah I also haven't seen too many one shot games that are worth playing for very long, and note that is just my individual observation and not a proper study.

I don't trust that designers and creatives, currently, know what the future brings insofar as tool development -- features which could be added to generative AI that would give the designers and creatives control over their assisted creations equivalent or superior to that which they currently have with their current tool set.

When I was a boy, (spoken with a drawl), we didn't have affordable computers that could do graphic design. And I did spend time watching professional graphic designers transition from frisket, paper, pencils, pens, paint, film photography, and on and on, to using Macs. They complained. But they got good at it, and the tools got better and better. Nowadays, I do not see people doing graphic design by hand, often. Tactile media creation is obviously still practiced but I would argue that more people use computers to do in my case graphic design I think frisket paper and mechanical pencils and exacto knives, today. So the transition is possible.