I think it’s fair to not want to be that close to a car driving. I wouldn’t be comfortable with that. But he shoots her as the driver side door is level with the officer. IE the wheels had already passed, but yes it happened quickly.
You can argue whether that level of discomfort of a car driving directly beside you in the moment qualifies for the self defense argument when shooting/killing someone. Thats a different argument though. And that nuance is real and important.
Again and this is a rather important nuance: You cannot judge someone's split second decision to use self defense by the chaotic events that took place in seconds after they made the decision to defend themselves with deadly force. You are putting the ox before the cart here.
At the moment he drew his pistol, easily identified on the video as his posture completely changes and he pulls it, at that moment the woman's vehicle was aimed
at him with its tires straight and the woman had just put it in drive and hit the gas. It was the vehicle moving forwards towards him that shocked him.
In the split second that followed, her tires spun in place with no traction. We can only guess how far she would have moved if she wasn't on icy ground, but its quite possible she would have run him over with a square hit. She had no traction for a moment and you can see the traction control system kick in. She only started turning her wheel at the moment, or perhaps after, the officer drew his pistol
Self defense has to be evaluated in the frame of mind of the victim at the time they are being menaced, on what they can see and not beyond their human capabilities. Once he made the decision to draw his firearm and shoot, he's in the split second motion and its an impossible level of nitpicking and armchair quarterbacking to expect him to reevaluate his target every 0.05 seconds. We've seen obnoxious prosecutors do that at high profile trials and its totally repugnant.
What did this officer see? A vehicle aimed directly at him, the driver ignoring commands and moving recklessly, who slammed on the gas and was moving straight at him. Everything else is irrelevant