Sampling music is literally placing parts of that music in the final product. Gen AI is not placing pieces of other people’s art in the final image, in fact it doesn’t store any image data at all. Using an image in the training data is akin to an artist including that image on their moodboard. Except the AI’s moodboard has way more images and the odds of the work being too similar to a single particular image is lower than when a human does it.