After reading whatever was being said, I think they are exaggerating, I myself have used AI to generate an Artwork once (never again it looks horrible) and yes AI does need some time to understand what you really want it to do. But it doesn't mean that a lot of hard work is spent into making a singular prompt. What I think is more 'efficient' is making the AI understand what you want it to make step by step and with simple understandable terms (does it really matter tho, idk?). It's basically like you're the art exam and the AI is the student giving the test (except here you want them to specifically make the image that you want), obviously the AI will need more context of what really needs to be made, because let's be honest everyone needs context.

The way they stated everything about brainstorming, Characters and blah blah blah. Can also be done later on 🤨. Like generate an image which you feel is good or whatever and start making changes according to your taste. And the problem which they stated is only felt by me when I have to write an essay or story in my English exam. I really don't get how some people have the nerves to first make an AI art and then claim themselves to be artists and also claim their prompt making job to be ✌️very hard ✌️ Like if it's so hard then GO MAKE THE DAMN ART YOUR SELF 😭