The basis for the comparison seems a little silly...It's a bit like making the claim that overall athletes who compete in the summer Olympics are better athletes who compete in the winter Olympics. When you don't have head-to-head competition in the same sport, it's just really hard to make that type of comparison.
The article seems aimed more at reassuring the long-term buy and hold stock investor that they are indeed making a good decision with their resources. It's a little like watching a presidential debate. There is little attempt at an actual debate...mostly, they speak to their base trying a to paint a pretty picture for their side appearing all the while to unbiased.
However, I have serious misgivings about the relevance of this type of approach (i.e., if one were to focus on the stock market) for the average person. The average person doesn't have the discipline to just leave their money in an index fund and forget about it.
When I was investing in stock, I picked individual stock - and got absolutely slaughtered. My problem is that I didn't really understand what was going on for these companies.
I defy any average investor to claim they have a true understanding of the companies in which they invest their money. Even the employees of these companies have a hard time figuring out what's going on.
It's totally different when you are at the helm of your own company. Most people are not cut out to take that on...but I've gone from loosing money in just about very investment (stock market guessing) to understand how to put together a money making machine (real estate).
I'll never go back to stock guessing...thank you, real estate.