> An LLM is very capable of implementing all of that… if only someone who knows all of that stuff tell them first.

I agree with you, but I don't think it's the entry-level dev who is going to be interfacing with the client to discuss and resolve all the questions you posed, and/or decide on them. That was part of the OP's point -- that much of their time is spent interfacing with the client to very precisely determine the requirements.