I can't remember seeing problems be more strongly worded than "Increased Error Rates" or "high error rates with S3 in us-east-1" during the infamous S3 outage of 2017 - and that was after they struggled to even update their own status page because of S3 being down. :)
During the Facebook outage FB wrote something along the lines of "We noticed that some users are experiencing issues with our apps" eventhough nothing worked anymore