I keep wondering if that person thought about the cut corners and his general attitude while going through his final moments, or perhaps it never occurred to him as he was simply focused on survival.
With an implosion of a carbon fiber hull, there probably wasn't enough time to even think of his mistakes let alone the words "oh fuck".
Apparently the crew commissioned an emergency ascent right before implosion, suggesting they had a warning of some kind (hearing the ongoing delamination, maybe? scary thought).