Paavo Toivanen wrote code that generates uncannily human, but utterly meaningless and illegible writing. Toivanen's thoughts on generative art are worth reading.
Generative art should ideally retain two disparate levels of perception: the material and visual qualities of a piece of art, and then a creation story or script and the intellectual journey that led to the end result.
The creation story is what's missing in most generative art, especially when it's presented as a representation of nature.