If power is out in that large of a radius you would also likely have trouble getting gas.
And you don't need the expensive equipment to just run an extension cord from the EV to power critical appliances.
As for powering critical appliances, I'd need a super long heavy duty extension cord to power my fridge, and I don't even know if my vehicle is capable. I'd also have to have my garage door open while it's plugged in, which is not ideal to say the least.
> need a super long heavy duty extension cord to power my fridge
Why on earth would you need a heavy duty extension cord for something which pulls so little power?
I otherwise agree with the sentiment, however, it is way more convenient to set up your panel so you can backfeed it to power the whole house (or a nice chunk of it, at least). My Lightning will power all the important bits of my house for the better part of a week, all from the plug in the bed of the truck.