I would venture that 'tightening the feedback loop' isn't necessarily 'increasing the number of back and forth prompts'- and what you're saying you want is ultimately his argument. i.e. if integral enough it can almost guess what you're going to say next...
I specifically do not want AI as an auto-correct, doing auto-predictions while I am typing. I find this interrupts my thinking process, and I've never been bottlenecked by typing speed anyway.
I want AI as a "co-worker" providing an alternative perspective or implementing my specific instructions, and potentially filling in gaps I didn't think about in my prompt.