Isn't S3 claiming eleven nines of data durability?

https://aws.amazon.com/s3/storage-classes/

"Additionally, S3 stores data redundantly across a minimum of 3 Availability Zones by default, providing built-in resilience against widespread disaster."

I wonder if "can't restore some data" includes any S3 data?

I'd expect to lose EC2 instance EBS data in the event of a datacenter being destroyed, but I kinda assume I wouldn't lose S3 data? Now I'm wondering if RDS backups are more like EBS or S3...