That is an excellent example of minimal force necessary to take a suspect into custody. If he had died in the rollover? So be it! He should have stopped the car.
Interesting.
Why was he being pursued?
No idea. Don't care. At the first sight of blue lights, an intelligent person slows down and pulls over at the first place available which will ensure the safety of officers approaching his car. He then opens the drivers door and waits patiently with his hands on the steering wheel.
An intelligent person understands that he can not out run the radio. And any attempt to do so will just result in additional defense proof felony charges.