Snowstorms happen across a lot of the USA for a good 3-4 months a year. If stop/start/slow/slide driving in winter conditions kills your car, you could wind up killing way more than 10k people, either through exposure, or because a snowplow or another vehicle didn’t see the killswitched, snow-covered car and rammed right into it.

I like living in snowy places. I could see this being a real problem, just like snowy conditions mean self-driving won’t work for me for many years in my only vehicle.