Chronus, if you're going to criticize decisions from your armchair, which is pretty despicable behaviour given none of us were there and so don't have many of the facts, then at least get the basics right. It has been repeatedly stated in this thread that FZ fly single channel approaches even in Cat III. It has also been repeatedly stated that the 737 autopilot only remains engaged on pressing TOGA if both were engaged, ie a dual channel approach contrary to FZ SOPs.