I had understood FoundationDB to be more akin to a storage engine (e.g. a sub-component of a DBMS) than a full-on DBMS. Was I misunderstanding? If so I bet a lot of people have this understanding, going back to your point on the web site/general sentiment in the zeitgeist not necessarily reflecting what they are.

Can you share any more detail? Are you saying there are companies that build software on top of FoundationDB as their primary data store? or are those companies building software around FoundationDB that in turn presents as more of a data store in the traditional sense?