It is not 'very nice'; it's often generic and lacking in any insight or striking imagery, the meter is ragged and inconsistent while the rhymes are often padding or outright slant (through/too, shore/core?). But I will grant it this: despite the AABB quatrain meter making it look exactly like AI slop, the flaws and errors show that it's probably genuinely amateur-written (as does a '100% human' rating in Pangram).
Nah, if the meta shifts too far, people will just prompt for lower quality like errors, the same way that if Pangram use gets too widespread, people will just start using anti-Pangram prompts and rewrite services. And since people largely don't notice or care, even here, that meta shift is going to take a long time.