> However they're stretching this pretty thin to try to explain away their entirely separate failure to test their backups
There aren't any backups. When you buy shared hosting, it does not include backups unless you explicitly contract such a service (if available, not everyone offers that) and pay for it. I wish this article was a bit more clear about that industry fact that I would have thought rather obvious but clearly a lot of people seem to think that because they're buying space on a disk someone else is going to take responsibility for what they put in it.