It could also cause immense frustration when people realize that all the time they spent creating AI art is essentially wasted when it comes to learning a new skill.
It could give people false expectations about the effort needed to make art. It could flood the internet with AI art to the point where it hides individual artists even more, driving down demand due to over supply.
Also, you dont need to create stunning works to motivate people to create more art, the problem is people not accepting the learning process which involves a hell of a lot of mediocrity and failure along the way. AI tools are not going to improve the average persons perspective, who likely thinks you need to be born with a gift to be an artist.