"Boeing's attitude towards multiple senso..sanity checks is that they are not necessary,"
And who is pushing hardest for a fully automated flight deck I wonder.
So when in doubt, blame the pilot.
Neat.
I'd say "WTF" but of course I understand exactly why they want to do it that way. It saves them money and shifts possible blame.
And IIRC this is not the first time a single sensor has been the only indication of what's going on, or not cross checked with another to say something is up (although with 2 it would not be clear what). I'm recalling a potentiate on a flight control surface in another crash. Can't recall if it's sample rate was very low on the flight recorder log or if it had flat out failed and had no backup.