But would you have an equally good experience listening to random beeps and chirps which aren't actually birds? Or from relaxing in the light of a big orange lamp?

It's not really about the artist. It's about the thing that's there. Which you experience, always imperfectly, through your senses. Other people are a wonderful thing that's there, but they aren't the only thing that's enjoyable. Usually the thing that's there which the artist wants you to experience, isn't merely the artist themselves.

Can you wonder at the miracles arising from matrix multiplication? Sure. Especially if it's a good artist trying to show you that miracle. I've enjoyed AI art from the start, but then it's the AI which is the point.