Fine art is going to be okay. Authenticity has always been a big thing there. New social critique is going to be something AI trained on last year’s data will struggle with. Ditto for pushing boundaries or establishing new styles.
Working art though… it does look doomed. Who’s going to pay an illustrator for something DALL-E does for pennies? You may still need someone with good taste to pick the images, but as the author points out, that’s not the same as being the artist.