PPRT Witness marks on the road prove the crucial part of the manoeuvre occurred directly over the road. If I'm wrong about that, it will come as a great relief to a lot of people.
There are no doubt huge sighs of relief all round.
The witness marks on the road show the point the aircraft made contact with the surface, point 'X', they don't show the
crucial part of the manoeuvre.
Crucial
Decisive or critical, especially in the success or failure of something.
pivotal, decisive, deciding, determining,
The 'crucial' moment of the flight occurred where all the factors, aircraft type, aircraft perf, technical status, display location, pilot, weather, human factors, men from mars etc etc, coincided to determine that the aircraft would contact the ground at point 'X'. Whether that crucial point occurred on the run in, on the way up, at the top, on the way down, how and why, isn't known (as far as 'we' know) yet.