Poems are not just about rhymes and beauty. I've generated a couple of poems by AI, and it never hit a quality a 10-year old could not write. Tht's nowere near the artworks produced by Keats and Yeats. Indistinguishable from the work of a child - maybe. Indistinguishable from the work of a true poet - no way.
Also "Overall, our participants reported a low level of experience with poetry: 90.4% of participants reported that they read poetry a few times per year or less" WTF are we talking about?
Who cares. If it's not provably written by a human but instead by an RNG, I'm not interested. Don't give me that crap about it being "indistinguishable" or better and that I couldn't tell the different in a blind test. That's completely irrelevant.