That's a hell of an assumption to make and I don't quite understand your reasoning. Debuggers are complex, true, and often people don't understand their potential. People, however, approach learning code and associated tools from many different directions, backgrounds, assumptions, and biases. If I were to read beyond your words and guess why you're so emphatic, I sense that you're coming from a distinct background (I won't bother guessing) where this is either obscured from you or where you've been allowed to forget.