I think the point is that one of the biggest problems in the field has been solved and yet the excitement from this is nearly nil. Can you imagine if say breast cancer were cured under similar circumstances, or even worse (say OpenAI openly admitting it basically stole a bunch of other researcher's chatGPT conversations)? No one would care about these petty bickerings- or at least the headline "CURE FOR BREAST CANCER FOUND" would completely swamp anything else. This is embarrassing: it tells you almost no one- not even mathematicians themselves really care about their own problems- if they're not careful people will get the impression it's all a form of bean counting in a carefully constructed "safe space" where making sure people get the credit is more important than the work itself. That only happens in fields/problems where no one actually really cares about the output.