[davorak]

> judge whether or not the law is reasonable

I am trying to make that judgment and help others to do so.

> and the second says that you're not trying to comment on what the law ought to be.

If I am trying to make a judgment, if I am in the process of reasoning through something I do not know what something ought to be.

Good analogies are those that help people reason through a problem and come to the correct conclusion, not a tool to sway people to your opinion.