Very true, in fact a majority of TAR viewers probably never seek out all that web content. I have friends and family who are "normal TAR viewers," from the content that they have seen they don't even know that teams go to Rio. It doesn't show that in the episode preview which is as far into the future as many go. The members on here are probably most of the people in the world that are interested in that kind of in depth content.
I just wonder sometimes because CBS knows we exist, maybe they drop us some hints on purpose. We are their superfans after all and the detecting makes the experience more enjoyable, for me at least.