I agree that limitation does lead to some creativity, but I wouldn't say lack of limitation means no creativity. Saying prompts have no creativity is like saying books or scripts have no creativity compared to a movie. Not only that, these tools can actually take images and sketches.
Imagine a world where you have a scene fully sketched out in your head (i.e. creativity), you have the script of what will happen, sketches of what the scene looks light, visual style, etc. You want to make that become reality. You could spend a ton of time and money, or you could describe it and provide sketches to an AI to make it come true.
Yes, the limitations in the former can make you take creative shortcuts that could themselves be interesting, but the latter could be just as true to your original vision.
Imagine a world where(spoiler alert you shouldn't it's already there) your vision is limited by yourself and a light technician gives a different point of view that you like, a punk pioneer in your team that is the computer graphics chief animator that gives life to your animatronics(jurassic park, and still unmatched today, cgi looks so fake and cheap). And yes you should spend a lot of time, not necessarily money, because art is time and something you have spent zero time in it its valued zero money
Imagine a world where you have a scene fully sketched out in your head (i.e. creativity), you have the script of what will happen, sketches of what the scene looks light, visual style, etc. You want to make that become reality. You could spend a ton of time and money, or you could describe it and provide sketches to an AI to make it come true.
Yes, the limitations in the former can make you take creative shortcuts that could themselves be interesting, but the latter could be just as true to your original vision.