Interesting development, but that journo wants a quiet word had, because this bit:
The autopilot, unaware of the error, lowered the nose of the airplane in an attempt to increase airspeed. Unable to maintain altitude, the autopilot disengaged, at which point three human pilots were unable to correct for the error.
is unsubstantiated nonsense. The autopilot disconnected because of the discrepancy in airspeed, that much is true, but I don't think it lowered the nose. As I recall the aircraft ended up slightly nose-down at disconnect because of a bump of turbulence.