This is an amazing series, really. A group of experts try to solve the mystery behind airplane crashes, in this case the disappearance of Air France flight 447 over the mid-Atlantic. The experts are experts who know their business, not media stars. The black box being unrecoverable, the explanations can only be based on guesses -- good guesses but still probabalistic.
In the case of flight 447, the explanation for its sudden disappearance in the middle of a thunderstorm depends on a link of several unlikely events. Unlike, but not impossible. That's probably why so few airplanes disappear.
The flaws here are two: (1) The sudden loss of all information about airspeed due to supercooled water clogging the pitot tubes that collect that information, and (2) the fact that flying by wire deprives the pilot of a chance to practice manual control when the computer system fails.
Technologists and engineers ought to find it fascinating, although the narrative is as clear as a supercooled liquid even to an amateur like myself.