What I was getting at was the fact that with electric, you're burning the gas inside a heat engine to generate power first, so right off the bat your best outcome is the Carnot limit.
The power plants with heat cogeneration have an efficiency of up to 80%.
I doubt very much that even half of the energy consumed by burning gas ends inside the cooking pot in most cases.
Regardless of the energy efficiency or pollution risk of gas stoves, there are people who prefer other cooking methods just because they like their results better.
Even if I have a gas stove and I continue to pay for gas as if I would use it, because I live in a condo and there is no individual metering, I have stopped using the gas stove several years ago.