Professionals do. That's why gas is preferred. As someone who enjoys cooking entertaining (visit while cooking in kitchen), I refuse to cook on someone's electric because I've burned and undercooked on different electric tops. It's simply not worth the hassle; or the disappointment. They vary greatly. For amateurs who use one stove for twenty years, you're absolutely right. Especially if you smartly use an external thermometer. But, emergency use still tips toward gas, even for amateurs.