I don't think that's the case. They meant to display the images and label them after selecting. Just like it says in the paragraph you quoted. In the results article, they even encourage you to take the original poll again, linking back to the original article. In other words, when they say, "now when you select an image," they meant, "on this page"!
Also, in the original article, there is an error message. It looks like a polldaddy wordpress plugin and it says "page not found." I think that's where they meant to put the images.
It's broken.