User blog comment:DaNASCAT/Technical Update: January 13, 2016/@comment-1370845-20160118161746/@comment-126761-20160118162100

We didn't intend it to come across as a strong implication that every page should have an infobox, but it was clear from the position of the link in the right rail that it was effectively doing so.

We do think the list has value, especially for communities that use infoboxes more heavily, which is why we aren't removing it entirely.