No i'm saying that you don't know how your bike will perform on a public road, which has pot holes, cracks, uneven surfaces, patches where cables have been laid, man hole covers, sewers.
Whilst you are on the track, you are having no interaction with any thing around you, you are taking the racing line, staying perfectly still into and through the corner, you are not lookign around to constantly for other road users, you are not constantly thinking... hmmm if this guy pulls out what can i do ? Or you are not thinking about catching the criminal infront of you.
Believe it or not, you are not Carl Fogerty, you are not a word class biker and you will never will be. This poiliceman is not a Michael Schumacher, but he is an advanced driver, has done advanced courses and passed the tests, and has been described as the "creme de la creme" of pursuit drivers.