It's not really important whether it's a one-off thing with this one guy, he's not relevant in the big picture. To the extent that he deindividualizes his labor he's just one more fungible operator of AI anyway.
People are making a bigger deal about it than this one article or site warrants because of ongoing discourse about whether LLM tech will regularly and inevitably lead to these mistakes. We're all starting to get sick of hearing about it, but this keeps happening.