No idea what they were waiting for. Perhaps a simple "ok, I'll come quietly".
He complained SIXTEEN times, along with other things. How could he manage that if he was truly out of breath? The police are apparently trained to ignore all the various bogus pleas.
How much was visible to say that he wasn't struggling? Only seen head area, and he can be CLEARLY seen twisting his body and moving his right shoulder upwards, on more than one occasion.
He would've been removed from the car for his OWN safety, until he calmed down.
If all the officers involved had been non-white, would they have behaved differently? Where is the evidence that they would've? After all, 2 were non-white.
UK Association of Police Officers(ACPO) advice
So looks like STANDARD advice to remove them from the vehicle. I've previously included examples of where people have injured themselves in the back seat of a police car. There are almost certainly many more cases out there.
How exactly do you think they should have subdued him?
Shoot him?
Use a sedative? Injection of Haldol or use chloroform?
Beat him unconscious?
There were NO options available to subdue him, so that left restraining him.
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