I agree with you overall, yet there’s one flow that works for me. Instead of speccing out a feature, I let PMs vibe code it. I then have the exact reference I need to build.

Maybe LLMs oneshotted the right way, maybe it needs fixes, maybe some fundamentals are misunderstood, in any case it’s easier for me to know what I need to build, for the PM to be aware of some limitations (LLMs do the job of pushing back and explaining) and overall for us to have to the point conversations.

It is somewhat orthogonal to what you say, when you focused on dev seniority, so that part stands true.

But I think “PMs armed with an LLM” can, when properly used, add a lot of value to the dev process.