Willfully perhaps, but if it's accidental and all other circumstances being equal I would say that's the pedestrian's fault. I don't understand this logic that because the pedestrian is ignorant about how traffic law works that they're exempt from following it, yes the driver should be paying attention at all times and be ready for anything to happen, but if someone breaks a don't walk light and just wanders into traffic, they should be held liable for the resulting accident.