"Good artists copy, great artists steal.” - Pablo Picasso (supposedly)

All art throughout history has been derivative, nothing is ever created in a vacuum. A learning model being trained by analyzing the work of other artists is how every artist learns. The AI just is faster, more efficient and less whiny than their meatbag counterparts.

Besides if this 'art' is representative of the artist's work, I dont think they have anything to worry about. No one would want to train their model off such low effort, garbage looking scribbles anyways so twitter art for the troons is probably safe for now.