Site Tempo link

I am not sure if I'm just doing/understanding something wrong or if this is a bug or what. When configuring a site, there's an option that says, "Show Tempo Link in Navigation Menu". I could have sworn that if I select never on that, that I wouldn't ever see the site listing when I click on that 9 square icon listing all the tempo sites. However, I am able to see the site listed. What am I doing wrong here? 

  Discussion posts and replies are publicly visible