Electric heating does reduce the risk of fire, yes, and some of us do it. (It’s also just a lot easier than a turkey fryer.) I rigged a water heater element up for this purpose.

(Technically there actually isn’t temperature control in distilling, the temperature is just the boiling point of the mixture, which changes over time as the mixture changes from distillation, but you do control the heat input which effects the speed at which you distill. Tangential, but counterintuitive.)

The reason most don’t is just cost/practicality. You really need to have a fair bit of liquid to get good results. Like tenish gallons (~40L). You probably can’t fit a still that big on your stovetop (and you really want to do this outside anyway) and you’d need a 240v connection to provide enough heat. Your standard American wall outlet doesn’t provide enough juice.

But the standard 240v 50a you charge an EV with or, in my case, plug in your RV does. People run drier cords out a window too.