But that is “battery heater” cold. If you plug in at home most cars will eat some power to keep the battery functional. So many Tesla owners have been spoiled by abundant charger availability they never bothered adding chargers at home, or couldn’t add one.
Once the battery gets cold enough there’s nothing to do without warming it up first. I wonder if we’ll see some portable battery warmers soon to make sure this doesn’t happen again next year.
I lived in Anchorage for three years. I parked my Tundra outside uncovered the entire time. I never had an engine heater, and never needed one. Your point is not invalid at all, but maybe these are not the arctic temperatures that should be causing this issue?