I must be missing something. All that I'm getting out of this is that "one should trace them in the Discourses and verify them by the Discipline" in regards to any teachings uttered by whomever. Well, who then is to say which Discourses and which Discipline are to be the gauge? I'm sure that there is another teaching that is better for determining whether a teaching leads to liberation or not, that contains specific characteristics of the teaching (i.e. "leads to dispassion, not to passion"), though I can't think of it off-hand. It's all about suffering and the cessation of suffering; that's the real gauge to go by.