"So the backups were accessible to such a degree remotely? They had zero offline backups?"
The system processed orders, so even if they had backed up the system 5 minutes before hand, the system still would have information, such as new orders and orders ready to ship, that isn't in the backup.
Depending on volume, the number of orders lost could easily become more valuable than the cost of a new server. This would especially be true if they are customer-focused; If you were a customer that had paid for merchandise and received a confirmation email detailing the same, would you stand for the company telling you "Sorry, we lost your order"? On the other hand, a customer's order may have completed processing and shipped so a full manual search of which orders are still in the shipping dock, which have had shipping labels applied, which labels are on a truck, etc.