I like the phrasing of the first part. But what art is "about" is very subjective.
For me, part of what I look for in art is intentionality - the notion that the artist has crafted each element toward a purpose, consciously or not. The less an artist contributes to the final piece, the less meaning I assign to it.
In this case: I would say that the individual pictures being displayed are not "art" - they have no meaning. But I think the device in whole is a piece of art. That is a creation that surfaces the creator's inner world, because they designed the device, wrote the code, crafted the prompts to achieve pieces that reflected their notion of beauty.