[cryptonym]

Only a fool would build an architecture for critical air-traffic with Cloudflare as a SPoF.

[rvz]

My point still stands.

Having no backup / contingency plan even if any third party system goes down on a time critical service means that you want to risk another disaster around the corner.

In those industries, accepting to wait for them for a "day or two" is not only unacceptable, it isn't even an option.