This is a waste of time. You're asking owners for a statement saying their stuff is adequately backed up and that's how they get on the list? No verification or auditing, just that they think their procedures are adequate. Similar to how people thought it was adequate to go with cheap hosting on vps providers to hold thousands of btc only to have it stolen right out from under them?
What could be wrong with that?
On that note, add Bitcoinica and Mybitcoin to the list. They both made claims about their adequacy and competence.