To derive the tradeoffs and interpret product requirements you need interacting with humans and understand the underlying motivations and politics of the project and the organisation behind it. The specs the customer gives you is not what is really needed to meet the underlying objectives, you have to iterate with humans that know the business in the loop. Not saying we'll not reach that, but at this point it means the AI has a deep world model and nobody has intellectual work anymore because the whole organisation is AI.