I believe he was wingsuit jumping for his own enjoyment not doing a stunt. All the same, it looks like it would be a blast, but it does catch up with even experienced jumpers eventually.
Jeb Corliss broke his leg badly clipping an outcropping on Table Mountain a few years ago.
I will have to admit that wingsuit sailing looks fun as all get out.
I figure one day some guy will succeed in landing just using the wingsuit tho maybe it is an impossibility.
Ironically has the song from Skyfall in it.