[RafiqM]

At least in the case with AWS, unfortunately there's business involved - because of their uptime guarantee, incidents that would be called downtime by a purely technical team are left as "operational" or "partly degraded". Otherwise, they might have to shell out millions or tens of millions.

[Maxious]

You have to provide "your request logs that document the errors and corroborate your claimed outage" for the AWS Compute SLA https://aws.amazon.com/compute/sla/