When your system is down once a decade your boss yells and it’s your fault

When your outsourced system to Microsoft goes down every few months your boss can’t yell at you

Outsourcing is about shifting blame elsewhere

Which is why service level agreements were invented.

The idea is that it's someone else's computers that are managed more comprehensively than you could reasonably do yourself. But if you choose Microsoft to provide such a service for you, I don't know what to tell you.