This makes some sense, but I don't think it negates testing backups? For duplicate live data, yeah, you can't just use both. But most businesses have at least s

This makes some sense, but I don't think it negates testing backups? For duplicate live data, yeah, you can't just use both. But most businesses have at least some things backed up to cold storage, and that still needs to be popped in a tape deck (or whatever's relevant) and verified.