That's true when everything is working as expected. But when things go bad (e.g. you can't login to your machine), business do care. My business depends a lot

That's true when everything is working as expected. But when things go bad (e.g. you can't login to your machine), business do care. My business depends a lot on Azure AD. A couple months ago, Azure AD went down for several hours worldwide. It was a wakeup call that SLAs can be broken and that the vendors are usually not transparent regarding the uptime of their platforms (the status pages are always green!).