Dat guy's goood! Many years ago we had our local Motorcycle Sheriffs use our parking lot for just such practice. The Course wasn't as complex, but was fun to watch. There was the one part where they rode in circles, one behind the other (sometimes three deep), and after a month it left quite the residue. One co-worker commented: "Look! Cop circles!"
The Sheriffs said that when they do this at shopping malls, they always come in Monday mornings and find lots of little bike parts laying around and chrome scrape marks from yahoos trying their course, but with no practice behind them.
Yes, some serious skills but all it takes is practice and being willing to pick the bike up a lot. You really ought to look for the tandem event where they teather two police bikes together with like a 6 foot cord and they ride those courses side by side.