I don't read that comment as victim blaming at all, it's just a statement of our sad reality: it's de facto legal to murder someone in a car so long as you're not inebriated and you stay at the scene and plead your innocence.
As a general rule I go out of my way to not piss off drivers, not because I think they're in the right, but because they can murder me with impunity and they know it.
But we live in the kinds of society where a person has rights until they prove they shouldn't. Not the potential, but the actuality. Now I think the middle ground might be better enforcement of near misses... "No harm no foul" needs to be removed from the mindset of traffic cops.
A rock thrown at a vehicle moving at speed can be (and has been) charged as attempted first degree murder. There are not really any victims in this scenario.
The driver of the vehicle (vehicles cause a dozen 9/11s worth of deaths a year) is armed. Only person that can stop a bad guy with a vehicle is a good guy with a rock.
If a driver can be goaded into murder, perhaps they shouldn't have the tools to commit that murder so easily.