People will die.
Imagine the produce section of your grocery store after a blackout in winter.
Especially if there is no alternative available.
Imagine having a need to travel, but your car is an EV, and you roll into a blackout zone needing a charge. Especially in subzero weather. (You're going to die. Maybe your fingers will remain nimble long enough to write a note or your goodbyes or even scratch out a Will).
Keep in mind that the people making these rules will NOT live under the same rules and conditions you will. They are unlikely to die from the combination of weather and lack of power.
The smarter your home, the more they can control.