Pittsextra,
Even if you accept the judgement of others who either saw the display or the video, they have no way of knowing whether Andy met his gates (which stand regardless of entry altitude), whether there was a technical issue with the aircraft or numerous other things that I really do not need to rehearse here all over again.
You simply do not know if Andy "poorly performed" the manoeuvre or whether there were any other factors. Without that knowledge neither you nor anyone else can attribute the accident to pilot error.
Utter, inappropriate supposition at this stage.