Code is not “content”. Marketing material product descriptions and art could be considered “content”. also enforcing this is a waste of time anyway since you can just reimplement what the AI generates on your own and then say you did it. Imagine this case: Telling ChatGPT to make a “tutorial” of your game idea and implementing that/following that tutorial. In what way is that different from whatever YouTube tutorial or blog post or sandbox game we all used to learn how to make games?
This is sufficiently different than having AI generate art for you.