Unfortunately, CFIT raises the questions of "but why" and "why like this", while hardware failure alone cannot explain the disappearance. Look, the government-

Unfortunately, CFIT raises the questions of "but why" and "why like this", while hardware failure alone cannot explain the disappearance. Look, the government-accepted cause is already pretty much a conspiracy theory. Pilot (and copilot, and possibly other crew) decide to make themselves disappear, and almost succeed. Except we haven't found a plane where that theory says we should have.