Very Darwinian of you but it's not just a simple question, it's an oddly-presented survey whose directions are a little confusing and unlike any other survey you've ever taken. Proficiency on this task isn't really part of my dating criteria. I ultimately married a pretty smart person who utterly failed to understand it, but I had already learned to discount the "match percentage."

When such a large percentage of people blow it, I tend to blame the UX, not the individuals.