Pretty basic use of an ai that everyone finds good

One of the points of an AI criticism is it's "uncreative and generative slop" nature. So why we just don't add some history or trivia to the creation? When I write a d&d book with monsters I can rarely afford to hire an artist for a ceveral dozens of monsters, landscapes and structures - so I just use an AI to illustrate many things to make it easier to understand. Thevmain purpose of an illustration to illustrate something, improving it and supplement. I believe there is literally nothing wrong to use an AI to support something