OK. Here is the most logical explanation and it's kinda scary. The Malaysian inspect crew missed a struct compromise about the antennae. Hull breech and people began passing out slowly. More like a hiss than a full blown breach, so the oxy did not deploy until everyone was zonked. Plane flew until fuel zeroed and plane downed somewhere in Indian Ocean. Got it from a G13 FAA. Still sad for the families, but no jacking involved.