Because in my time the stakeholders in companies have never actually been decisive when scoping features.
Co-pilot is indeed the endgame for AI assisted programming. So I would say for art, someone mindful could train an AI on their own dataset and use that to accelerate their workflow. Imagine it drawing outlines instead of the full picture.
It would be great if there was an AI that could be a liaison between developers and stakeholders, translating the languages of each side for mutual understanding.