Well, I think that your technique could be helpful in the most daily situations as well. Analyzing the argument of the other person is always a good way to understand him better. If you want to come up with your own points it's always better to know what exactly your temporary opponent means.

And you're right, most attorneys use this technique to win their opponents in the courts. My friend is a wrongful death attorney and thanks to his ability in understanding people's arguments he managed to build a good career.