I’m sure its great for the bottom line for a utility because people use way too much gas, but proper ventilation and maintenance is important which most commercial and residential customers don’t care too much on.
And most gas appliances are really quite efficient and can be considered green to a certain point when compared to electric appliances. However gas pits and fireplaces are terribly wasteful, customers like to have them though because it’s considered a luxury. I’ve had a commercial customer pay something like 20k for us to run a line for a fire pit, the rest of his building was electric.