This would be used if you are far into a sites subsections, it would be nice to make sure that you can get back to origin guaranteed. I guess the example wasn't a very good use case.

After right clicking on a tab, in the menu there would be a "Return to Main Page" Button, which upon clicking will send you the main part of the site. Here is an example, if you are on "youtube.com/blahblahl245" clicking the new button would send you to "youtube.com" without any of the extra stuff after it. This would be helpful on sites that don't have a feature of if you click its logo it sends you to the main page.