You can't sacrifice the superior computational power of decentralized peoples acting in their best interest and substitute it with some truly wishful thinking that there will exist some superior knowledge that just needs centralized power in order to control a pandemic.
That said, I'm not stupid enough to think that's a good idea, and welcome any innovations in decentralized coordination.
This situation is, of course, a tragedy, but it is also what we have.
I'm sure plenty of authoritarian regimes would love to have information on all sorts of things that health agencies could be made to collect by treaty. How about just "travel?" Let's track the movement of every person from place to place. It's for the pandemic! It's definitely is not part of a surveillance apparatus meant to stifle dissent, not in the slightest.
But it has nothing to do with COVID-19.
Virus provenance is important. It’s not a blame game. If it escapes from a lab they owe the world every piece of research they have on it but we’ll never get there if everyone says “hey hey let’s not play the blame game here”
Note that that doesn't rule out that it wasn't the case, but it is to the best of my knowledge not something that we have even a shred of direct evidence for.