I think the mistake people are making currently is that they publicize stuff way too early. I.e. they make a prototype and then put that out there. Possibly with a full product page and all.

People did this also before LLM, but the difference is that now the prototype is a fully functional product in the technical sense whereas before it was little more than a glorified Hello World. The human effort and calendar time used remains roughly the same.

There's gonna be amazing products made with LLM, but it'll take some time. Not as long as it did before, but still significant time.