That part was a little weird to me, but the idea is typically to try and learn what is more important for you from a smaller subset of questions, as opposed to just using full ranking lists where you might not be truly accurate.
For me the hard ones were whenever anything was paired with "Weekly" and had any price on it. Like I'm not that cheap, I own pretty much all Civ content, but it can take me a week just to get thru one or two games, nothing they could make would get me to open my wallet on a weekly basis. That part I think they could have calibrated a bit better with the subject matter in mind.