Never buys lemonade from your stand, so customer is kind of a stretch. And the one time you offer to buy him some damn grapes he keeps asking for, he slaps you in the face by declining the grapes you've just paid for, instead wanting lemonade from that store.
AI art lacks one thing that human art has; purpose.
Difficult to explain but if you really look at this picture you can make out the artist's vision and intent behind each stroke.
An AI model is a mish mash of everything, so the art will have an "average and soulless" undertone.
i like to think of genAI stuff as a robot with a camera, especially with how things tend to have very very specific composition, the subject always has to go right in the middle.