These small 'downages' basically never cause serious issue. Your solutions are just alarmist and extremely costly (though they will provide developer employment...).
Hospitals, airlines, 911, grocery stores, electric companies, gas companies, all offline. There will be more than a few people dead as an indirect result of this outage, depending on how long it lasts.
Emergency Departments and 911 were knocked offline. People will indirectly die because of this, just like the last time 911 went down, and just like the last time EDs went down.
It's not alarmist, it's realist.
> Society was able to move to mass WFH on a global scale in a single month during Covid
I don't know how much WFH saved lives, seeing as ordered isolation and social distancing was a thing during the Spanish Flu too (you just take the economic hit). But yes it allowed companies to keep maintaining profits. Those that couldn't WFH got paid in most countries anyway (furlough in England, etc).
If only because we can then move away from one-size-fits-all, while mitigating the short-term impact of events like the above.