Possible Tom, but I don't see any evidence of the footage from the New Zealand video. There are folk that who have said that this was manipulated live at the event. Well I didn't see any evidence of that either. Also there are very subtle fade points on the video. I'm not saying that it's impossible to do live, but I am saying it would be with such accurate and subtle results.
If you look at the footage from 2:00, you can see a paraglider close to camera or likely zoomed in, then the camera quickly pans out and we see more dark patches. These dark patches are the mountains behind the paraglider appearing on the video. 2:15 - At this point we only see the front tip of the wing, then there's a cut and we get closer to the paraglider. At 2:18 we get some very clear shots of the whole wing. There is a clear fade transmission at 2:25 when the blue suited skier appears. Also notice that the video goes into slo mo at this point. The kaleidoscopic shapes that spark into life towards the climatic build, with ski poles, blue skies and sun flares look very much like the early 8mm shots that Warren Miller was famous for. The real proof would be to find early film of a paraglider with the same wing colour and pattern.
The New Zealand film is really nice though. Especially those low light, end of day ski shots at sunset.
This guy has done some lovely simple shots of 8mm film alongside some interesting music. I myself own a canon 310 XL, I've just bought a cartridge for like 40 quid. You get about 3 minutes of film time so you gotta be really careful about what you shoot. It's a healthy way to discourage selfies and other forms of narcissistic photographic behaviour.
https://www.youtube.com/watch?v=2WVtAwJk1XUhttps://www.youtube.com/watch?v=vCW1a9opuMchttps://www.youtube.com/watch?v=hgcq059g7Ms