To be fair, losing power in a winter storm can be equally dangerous because while the gas might still work your central HVAC system requires electricity to run its blower, power the thermostat, etc.

That said, you are still absolutely correct about the proportion of the population that's really at risk of extended blackouts being incredibly small.

In the US 80% of the population lives in urban or suburban areas, where for the most part power outages are measured in either seconds or hours and while extreme weather or bad drivers might sometimes cause enough damage that it takes a few days to get power back on to a specific neighborhood it's rare outside of large-scale natural disasters for the power to be out over more than a couple of neighborhoods.

I live in an older suburban neighborhood in Ohio and the one time we had power out for more than 12 hours the literal next street over still had power. Even if my whole neighborhood was out for a week, the nearest fast chargers to me in either direction are both technically in another city and on an entirely different section of the grid. If power is out for all of them for days on end stuff is really messed up to a point that FEMA and/or the National Guard would likely be involved, and that's beyond the level of disaster I'm really worried about.

Obviously those who live in low-lying coastal regions like Florida and the Gulf Coast where a disaster is pretty much a given or those living in extremely rural areas where restoring service is going to be deprioritized have different risk assessments and if I were in their position I'd be looking in to trying to be as grid-independent as possible, have enough battery power and solar generation to support living comfortably without requiring grid input under normal conditions and to support "emergency mode" operation with half your system or more destroyed in case of a major disaster.