User blog comment:Craiglpalmer/Introducing Fandom/@comment-1370845-20160127104321/@comment-20644-20160127155157

A big reason for not including those other hubs in the navigation right now is because they just weren't getting any traffic from the navigation. So while it's nice to show the broader range of hubs, keeping them wasn't serving readers or communities. Readers weren't using them, and communities weren't getting traffic from them. Communities are far better served by strong Wikia SEO and the ability to perform a global search in the search bar.