Not really. If you read between the lines you see there's a story she's avoiding.

> It is not true that some independent AI agent went in and deleted the material

Notice the wording. It's a half-truth response. She's probably correct, but the accusation wasn't that a "some independent AI agent went in and deleted the material". Just a AI deleted the material.

Then backup failed as the reason. That's not THE reason. You don't need backups unless you lose your data. How did the data get lost?