All of us are capable of doing that. It's not difficult if you know the basics. Use the friction zone, rear break, throttle, sit forward on your seat & look where you want to go. The most important part is to have confidence. It's basic physics and you won't drop your bike if you know how to put all the pieces together. That said, I couldn't ride it as fast as the cop in the video but I could hold my own against most riders. Perhaps I need more confidence. 
Ah, somewhat akin to the alchemists dream. It is true though that with instruction and practice it can be done well. However many of the competition motor officers are professional coners, they even have coach's that tell them if they're spotting late or early, measuring the track temp and adjusting tire pressure for the temp and asphalt condition, etc.. If you have ever taken a big bike like ours through a full course like that you would know that it can't be done slowly. On that particular course the officer is at full lock, full lean through most of the turns. You slow down, you go down. Some courses are more wide open and can be run at a slightly slower speed. Practicing various cone patterns on your own is much different than running a full course at speed. If you lack the confidence, you probably lack the experience. Not saying that you can't do it, you just need to try it if you haven't already before you discount that officers talent. Since you have an interest and said talent, you ought to take an RLAP or other slow maneuverer class, as should everyone. After street riding, racing motocross etc. for over 37 years at the time of my first class 5 years ago, I gained a tremendous of manuvering knowledge there. Besides, it's a heck of a lot of fun.