The existing, human standards are based on human capabilities. Humans may not have read all the papers that could be cited. However, all these papers are almost certainly in the AI’s training set and it potentially has the ability to retrieve them over the internet into its context. Why shouldn’t we expect the AI to cite more comprehensively?

It seems more like a goal-setting problem, than an actually novel one. But a paper with lots of citations is not as “cutting edge”, so maybe doesn’t make sense for marketing reasons.