I'm going to go out on a limb and say that it addressed the seeming contradiction in the stimulus by providing some clarification of how the two competing phenomena are not mutually exclusive. We'll notice that AC's A,B,C, and D all fail to to this.
They are meant to supplement your study as you go through the CC. You are essentially applying what you are learning in the CC. Also, you can use them for drilling material during the pt phase if you notice that you are weak in any particular area.