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.
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.
Also in the big picture with covid not being as deadly as it could have been, could serve as a nice dress rehearsal for a captain trips.