I've also watched my own dog go in for the attack - he goes in fast, low, and STRAIGHT. And if he's making any noise, it's a low growl, not a high whine.
But this video showed none of that behavior. The dog lopes around, in a semi-circle, whining.
But this ignores what happened previously - the dog's owner pleaded with the cop to close the door to keep the dog inside. That the dog jumped out of the car is a forseeable consequence. The officer's are negligent.