It looks as if the author -did- look at the event with a fairly in-depth analysis, and the results were plausible yet inconclusive.
This would give a plausible way to fake the first and the last scenes, where you see the man from behind, as well as the "in the air" scenes where you just see from his perspective: you could in principle put him in a boom lift vehicle -- perhaps suspended from it or perhaps even just sitting in it -- and the image would look very similar.
The side-view shot would be much more difficult to fake.