That depends on the data. If this is EBS or single-AZ S3, then from Amazon's perspective this was correct. Backup responsibly (for any data that does need to be backed up) lives with the customer, and Amazon has no way of knowing about that. EBS data data is unrecoverable, and that's what's reported.
Now if this was multi-AZ S3 or whatever then this would be significant.
The article does not tell us what products were impacted.
Now if this was multi-AZ S3 or whatever then this would be significant.
The article does not tell us what products were impacted.