The Mahon report just can't be taken seriously as it would suggest that the Passengers and Crew were 'doomed' from the moment that the updated flightplan was given to the crew without notification and from that point they were going to impact the mountain effectively rendering the crew as passengers. Finding the crew 'blameless' further enforces that view, as it has been pointed out time and time again in this thread that is just not the case, there were multiple missed steps or opportunities that could have avoided the whole tragedy and to alleviate all responsibility from the crew and their decision making leads to an unbalanced and dangerous report as it means lessons aren't being learned.