If they tie, US loses on the narrative. Western press can either portray the US as coming from behind and caught up with China in the very final dramatic event OR the US, expected to win the most golds but have to settle for a draw. The first sounds much better but implicitly it suggests China is peer competition, the US as the underdog, and matching China is a badge of honor. This is clearly a historical Olympics for China second only to 2008 with the two countries even on neutral ground. The Greeks only had champions and everyone else. Placement is for wimps. US has to live with China being viewed as an equal for the next EIGHT years since US will be the host country next time and whatever US does in LA will be heavily discounted. Congratulations to China on achieving Gold parity, getting close to 2008's medal counts, having so many memorable breakthroughs in a single Game. Cannot write a better yet still believable script.
Just this year Chinese children achieved parity in protein intake with the US and their height increase has been the fastest in the world in the past decade. Social changes and public health improvements move at generational speed (i.e. a step, rather than continuous function) so for this to happen in 2024 is unsurprising to sociologists. This bodes very well for the Chinese athletes competing in the 2040 Olympics and beyond. I work in New York and our 2024 Summer Interns just finished last Friday. I can see the night'n'day difference from the 1990's. The confidence, composure, and fearlessness in them (to be fair, most of them are from MIT and the Ivies so the sample is skewed). China's '10 generation will dominate for sure. Having breakthroughs are nice (it means we are not quite there yet) but to be shocked and disappointed when China loses (like in Table Tennis or Diving today) is much better.