Let's say I play devil's advocate. The article discusses the results for the query “level 4 brain cancer” and how a freelance writer ranks higher than sites that should be considered authority.
O.K. Here's my logic. I have no idea what “level 4 brain cancer” is. Sounds serious though. 1) I suspect that I have “level 4 brain cancer”. I should seek medical attention right away. I shouldn't be wasting any time on Google. 2) I hear about “level 4 brain cancer” and what to find out more. The short article is going to serve my purpose more than a scientific paper. 3) A web page isn't going to replace a book. A book covers one topic and can be from 300-500 pages. 4) Medical books and journals are the places that academics and doctors should be researching.
So, what I'm saying is that the layman article may be more useful for the end user.