What is a "disingenuous argument?" Is it like reading the phrase "the right of the people to keep and bear Arms, shall not be infringed" to mean something less than that based on a clearly set-off explanatory clause in front? (Sorry, I couldn't resist.)

The standard for permissible arguments in court is having a good faith basis in law or fact, or a good faith argument for extending or changing the law. It's not clear to me that's wrong. Fee-splitting with non-lawyers is the bigger issue. That is impermissible for all sorts of good reasons.