The argument "you can express your creativity any time you want" is very flawed.
For one thing, it comes from a self professed artist/musician. You have spent the time learning to play the piano and producing art. It's a self serving commentary to say that you don't like AI art, because without it you belong to an exclusive club.
Then there's the point of *what* you can create. You can create piano music. What about music for other instruments? A lot of people want to compose something with instruments they don't know how to play. So they use synths. Do you feel that's cheating? Do you feel they create crap? People create good music this way.
What if you have the creativity and think of an image of what you want to draw, but you don't have the skills to make that drawing the way you want it? So you go to AI and iterate against it until you get something that matches your vision. Isn't that art? If you write a good movie script and get AI to be the actors and director, isn't that art?
Sure, anyone can create garbage with AI. But anyone can create garbage with a piano, a camera, a piece of paper or a canvas. Museums are full of pretentious pieces of crap drawn on canvas. Some modern composers make orchestraic music that few people even bear listening to. Or, if you're the pretentious type, pop music is now more stupid than it's ever been. And that's all created by people, with no AI help.
So it's obviously a bad argument to imply that if something can produce crap, there's no place for it. Sure, the easier to use the tools are, the faster people can churn crap. But the faster they can churn good stuff, too.