Its absolutely possible, the worst AWS outage was caused by one engineer running the wrong command [0].
"This past Tuesday morning Pacific Time an Amazon Web Services engineer was debugging an issue with the billing system for the company’s popular cloud storage service S3 and accidentally mistyped a command. What followed was a several hours’ long cloud outage that wreaked havoc across the internet and resulted in hundreds of millions of dollars in losses for AWS customers and others who rely on third-party services hosted by AWS."
"This past Tuesday morning Pacific Time an Amazon Web Services engineer was debugging an issue with the billing system for the company’s popular cloud storage service S3 and accidentally mistyped a command. What followed was a several hours’ long cloud outage that wreaked havoc across the internet and resulted in hundreds of millions of dollars in losses for AWS customers and others who rely on third-party services hosted by AWS."
[0] - https://www.datacenterknowledge.com/archives/2017/03/02/aws-...