Probably an overall win for safety, redundancy, and (maybe more importantly) security. That said, considering the number of different exploits that have been as

Probably an overall win for safety, redundancy, and (maybe more importantly) security. That said, considering the number of different exploits that have been assembled for large attacks in the past (how many zero-days were in Stuxtnet?), I wouldn't completely rule out the possibility that the flight systems were hacked. This flight may not even have been the primary target, but rather a test of the attack vector, with the attacker finally directing the aircraft out over a big, deep body of water where it would eventually run out of fuel and eliminate most of the evidence.