What you've shown is that there is a crossover where a gas car + generator beats an electric car.
That doesn't mean electric cars shouldn't be considered as power backup, or that buying a nice electric car vs a nice gas car doesn't come with the added benefit of "Don't need a 10k generator anymore".
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> That doesn't mean electric cars shouldn't be considered as power backup, or that buying a nice electric car vs a nice gas car doesn't come with the added benefit of "Don't need a 10k generator anymore".
From redundancy perspective, a genset + car is hands down a better combo. A functional ICE car is cheaper and goes everywhere without any trip planning around charging stations, which is another plus.