Dudley Henriques writes:

What has piqued our interest isn't what's obvious but rather
how this pilot ignored so many visual cues and performance cues
during the takeoff run, all of which should have been telling him
to abort. He ignored these clues over the extended run over
terrain where the takeoff could have been aborted at any time.

One wonders if he would have behaved the same way if he were alone in the
aircraft. And one wonders how much experience with high-altitude takesoffs and
landings he had. Perhaps he didn't want to disappoint his passengers (one of
whom was his son). Some people give people priority over safety and remain
popular (until they crash), others give safety priority over people and become
unpopular (although they live to a ripe old age).