Creativity is more than just deciding that you want 'a space opera, but with an order of knights who yield swords that glow, bad guy looks like a Japanese samurai, reimagined in a 1970s futuristic style.'

Creativity is not just having the idea, it's bearing that to fruition in you own manner (or that of a group of people). Gen-AI outsources the 'creativity' needed to get what it generates. The prompt wrangler provides only the prompt; the rest is drawn from the training data.