No, it's actually fairly common in crashes between motor vehicles and pedestrians (or cyclists) to place most or all of the blame on the pedestrian.

When the Uber self-driving car struck and killed the pedestrian, not only did the internet peanut gallery largely blame the pedestrian for the first 24 hours or so after the death, but the local police force did as well for a couple of days. I rather suspect that without the national spotlight of being the first pedestrian killed by a self-driving car, the local police force would have been happy to absolve Uber and the driver of any liability.

It should obviously be possible for a pedestrian to be at fault in a collision. If someone without the right of way steps in front of a moving car, there is often nothing the vehicle could physically do to prevent the collision at that point. That's what right of way is for -- you have rules that, if everybody follows them, nobody gets hit, and then if someone gets hit because someone wasn't following the rules, the fault is with the person not following the rules.