Jazz guitarist here, utterly disgusted by this technology: you are right on the money. The chorus is fine (though bland), but the verses are simply terrible - not just bad timing, there is a total lack of melodic "flow." Like almost all AI music I've heard, the melodies fit into one of two categories:

1) generic and lazy, but works musically due to Music Theory 101 (playing chord tones to the beat, cliched progressions, dumb rhythms)

2) arbitrary and nonmusical, not at all like a bad musician (more like a baby on a piano)

I will add that LLM hallucinations often blend into the text, and an art generator screwup might be hidden in the background. But when a generative music AI hits an off note in a distinctly nonhuman way, it's obvious and very jarring, even if it's only a handful of times in a long song.