I think people need to start being educated about how their climate influences how they can use the electric car. Many people know if they live by the sea or where roads are salted that corrosion is an issue. But people might not be aware that with some EVs, they should leave it plugged in if they're in an extreme climate, so the car can air condition or heat the battery. I caused some battery degradation to my Volt because I wasn't able to leave it plugged in living in Tucson.
You have a point; some EVs like the Leaf don't even have conditioning. The Volt does have active conditioning, and being a PHEV instead of a BEV has battery charge and discharge limits which were limited by the factory to preserve longevity at the expense of being able to charge to a true 100%. If extra range is needed the ICE is activated instead of stressing the traction battery.