Unfortunately I agree with you. GPS makes us all Superpilots, able to fly through mountains, skim blindly through clouds, and leap gravity in a single bound. What it doesn't do is bring four passengers back to life....
Its definitely not clear at this point whether weather/IMC was the major factor or whether performance of a 206 at 14,000' was the major contributor. Early unconfirmed reports are that the clouds were broken about 7,500 to 11,500 around the mountain at the time of the crash. Its certainly a deceptive mountain to fly close to - you think you're flying level across the Saddle areas but the ground's outclimbing you at 1000fpm in some places. And even in clear skies there are substantial down and updrafts around the area.
Rumours are that the pilot is due to be discharged from hospital with a broken hip and jaw, but he has little memory of the incident at this stage. Investigators and rescuers are doing what they can to find out what happened and bring the bodies back to their relatives.
Its so very, very sad. What an awful thing to have happened. There, but for the grace of God go us all......?