alt Hacker News> maybe slightly further cementing that the US will not come to Taiwan's aid
Isn't that the opposite? The US just demonstrated that it can still conduct military operations, and the presence of Chinese envoys in the country does not deter it in any way. As of now, China has one fewer source of oil it can rely on in case of an invasion.
Maybe you're right, but I view it more as: China can now be confident that the US doesn't care much at all about the sovereignty of weaker nations or coming to the aid of allies. "Might makes right", and if China asserts itself with strength (as in a full blockade/invasion instead of a few envoys present) Trump will most likely back off.