It's plausible to me that there is some kind of strong AI future scenario in which they become capable of making things in a genuinely creative way, but I think

It's plausible to me that there is some kind of strong AI future scenario in which they become capable of making things in a genuinely creative way, but I think generative AI in its current trajectory is ultimately a dead end for both AI art and strong AI. I do think that an actual strong AI would be inclined to make art that is enjoyable to itself and other AIs, not humans, so I don't think making it ape us is an actual good test for when an AI becomes capable of creativity. You can teach a dog to dance, but it will be doing a trick, not a tango.