It's interesting how quickly we've gone from discussing an interesting failure mode of autonomous robots that travel in public spaces, and switched to calling it PEBKAC.
This is a unironically a great signal society is willing to accept self driving cars. Even computer security isn't this good at playing blame the user.
"Society" didn't blame the user, I think "society" would have no problem blaming the car. Hacker News isn't representative of society at large.
The signal you're seeing is the tendency of tech people to consider any risk to human safety to be less important than the benefits of the technology itself, and to always blame the human and never the tech.
You also see this manifest in any conversation about the failure modes of AI, in the inevitable knee-jerk response of "humans also do x."
This is a unironically a great signal society is willing to accept self driving cars. Even computer security isn't this good at playing blame the user.