Aren't these things just accidents? Everyone points the finger, analyses why, try's to find a reason, blames someone, blames them selves, when in reality it was just human error, fallibility. An accident?
Life isn't a guarantee of success,
Many years ago I had a flight around New York with liberty helicopters. Very pleasant. A couple of years later a Cessna strayed into the area, collided with one of their helicopters and everyone died.
**** happens.