In all 50 states, it's now cheaper to fill up with electricity than gasoline

https://media.kbin.social/media/c5/ca/c5cae5cc8a659450de0f19498a488597670e77ef4a803e81b8820c7d5ba7d9a9.png

Wouldn’t it be far better to compare fuel cost per mile ($/mile)? This graphic seems useless to me. Maybe I’m missing something.
Of course it would trivally be. That on the other hand does not sell electric cars loaded with subscritptions nobody wants.