If your senior management/devs are worth anything, they were already aware that this was a possibility. There is no excuse for what ostensibly appears to be a total lack of a fully functioning development & staging environment--not to mention any semblance of a disaster recovery plan.

My feeling is that whatever post-incident anger you got from them was a manifestation of the stress that comes from actively taking money from customers with full knowledge that Armageddon was a few keystrokes away. You were just Shaggy pulling-off their monster mask at the end of that week's episode of Scooby Doo.