Earlier quoted context omitted.
Why would this be an indictment of any specific database technology? If your disk fails and corrupts the filesystem, you're toast, regardless of what database you are using.
The technology to detect and recover from disk failures does exist. RAID and ZFS, for example. I would not expect a disk failure to replicate to the backup.
RAID does not really protect you from bit rot that tends to happen from time to time.
ZFS might because it checksums the blocks.
But if the corruption happens in memory and then it is transferred to disk and replicated, then from a disk perspective the data was valid.