What do you expect the cabin crew to do when they see both pilots dropped dead in the cockpit through the camera? Force entry into the flight deck and land the plane or give an announcement to keep the pax informed?
IMO, the destination airport should have instruments to log onto the a/c FMC,communicate with the navigation system for speed control,STARs, arrival sequencing and autoland the plane when required. Which is basically replacement of today's verbal radar vectors. Helio's a/c would not crash if this is here.Perhaps this can happen not too far future.
Cheers.