There are way more than 12 on their site. It does have Facebook.
This is what you mean?
So far as I can tell there are exactly twelve assessments since 2012.
*Edit. Let me be tougher.
There have only been two new assessments in the past two years.
There have only been five new assessments since the first Wayback Machine snapshot of the page (October 2012).
If you want to get involved, please see https://tosdr.org/contribute.html – thank you!