I'm guessing it's easier to convince several countries to officially adopt bitcoin together at once, than it is to convince one country to join in at a time.
What if nostr:npub1jan3xfrvxmd35smylytmnp3ne0sgqh2x47yq766s55zaf6eja4rselx52y is not just named that way because of the genesis block date, but also as a way of publicly reaching consensus among countries interested in adopting bitcoin?
"Don't try to delay it or sit on the fence, the game plan is January 3rd, participate or don't."
Just a conspiracy theory to get extra bullish in the last few weeks of the year ;)