I've seen people in wingsuits flying so close to the ground that I thought they were going to land on their belly at any time. I've seen them fly through tight canyons or so close to a cliff that they could high five people standing there. But this flight between trees seems like the most suicidal yet.
It's like the speeder bike race in Return of the Jedi, but for real and without any chance of survival in case of collision. Scotty Bob is an awesome lunatic.