We theoretically may have avoided, for the next few decades, the risk of a truly dangerous infectious disease being underestimated, something halfway between Covid and extinction-level threat.

Given the sheer quantity of idiots underestimating it right now, I'm not too sure that things will have improved a few decades down the line.

I think it's hopeful humanity would prevail a more deadly pandemic, many countries closed borders very quickly and there are island nations with understandably quick responses. Civilization as we know it could definitely still get wiped out though.

That's a great tshirt slogan "I'm not blocking the canal, I'm testing robustness!"