[cryptonym]

Sometimes it's not worth it. Your plan is just to accept you'll be off for a day or two, while you switch to a competitor.

[creamyhorror]

If there's a fitting competitor worth switching to.

Plus most people don't get blamed when AWS (or to a lesser extent Cloudflare) goes down, since everyone knows more than half the world is down, so there's not an urgent motivation to develop multi-vendor capability.

[rvz]

Can't say that when it is a time critical service such as hospitals, banks, financial institutions or air-traffic control services.

[cryptonym]

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