No he is right, he is saying taken to the extreme. The point is the more and more specific you have to prompt, the more you are actually contributing to the result yourself and the less the model is
Yes but the build up isn't manual. You go patching prompts with responses until the final result. The last prompt will be almost the whole code complete, obviously.
Well now we get into information density and Komolgorov complexity. The more complicated your desired output program is, the more information you'll have to put in, ie, more complicated prompts.