The amazing part is the control. You can see clearly that he's not just jumping from one point to another hoping for luck. He'll actually jump onto a point, stop, slow down or at least pause a little, take a quick look around, and then proceed! Even at the beginning of the video where he does mess up, it seems he was smart enough to fall in a relatively planned manner when he falls off that fence. So he doesn know how to fall safely too.
Absolutely amazing.