Your argument is based on what actually happened but as they say, hindsight is 20/20. There is also what conceivably could have happened. That is why I say she was dangerous.
That the strike on the officer was a glancing blow was due strictly to luck and circumstances, not necessarily because of any restraint or clear thinking on her part. It could have turned out with a dead officer or pedestrian instead of the other way around.
But we don't know and we can't know and that's the clincher: the unknown. The unknown is the prime mover of choices and actions in situations like this, especially when things are happening as fast as they did.
Did the officer know it would only be a glancing blow? No. Did he know she would or would not accidently strike someone else in her haste to escape? No. For that matter, did she know the officer would fire or how they would react? No. For that reason she should have put the van in park and got out of the vehicle as ordered. Instead, she chose to escalate things further by attempting to escape and evading arrest.
Who committed the action that necessitated a reaction? She did.
You might have a point but I will say two things:
1.) She was coming right at him. That's how he got struck. It doesn't even matter if he didn't fire his weapon; he would have been hit in any case.
2.) If he had shot her through the windshield, people would still be outraged and you would likely still be assessing his actions as unprofessional. Outrage is what placed her there in the first place so for the officers, no matter how this turned out, it was a lose-lose situation.
I'm very big on personal accountability for choices and that's why I have no sympathy for this woman. She made her choice and suffered the consequences just as illegal immigrants made their choice to come here illegally and are suffering the consequences of that which outraged her in the first place.