We attempted to be cloud agnostic (using terraform instead of CloudFormation for example) and then later multi-cloud. The amount of complexity and cost around i

We attempted to be cloud agnostic (using terraform instead of CloudFormation for example) and then later multi-cloud. The amount of complexity and cost around it was just too much. If AWS goes down, more or less a good portion of the internet goes dark. It's an acceptable risk at this point unless you are truly massive and entirely self contained- if you are using any 3rd party services, IE for auth, payment, whatever- they may be using AWS as well and you are still exposed.