Yes. Fundamentally there is
almost no data that is not relational in some aspect. Any given document, you can virtually instantly start picking out "ok that could be a foreign key...", and if one does not exist, it certainly will before too many sprints go by. And most usages of NoSQL are essentially equivalent to a row within a table, especially given many NoSQL solutions have bugs or performance issues with deeply nested documents (ran into that with SOLR - deep pagination can give incorrect results with nested documents).
Personally I view a true document (not a table row turned into JSON) as being the deeply-nested kind, and ideally generated from the relational data itself, to allow different "dimensionalities" to be represented without needing pivots/windows/analytical queries, and that's very seldom what I see it being used for in practice. Again, most people just have a RDBMS row but stored in JSON.
example: in the "netflix" example, your movies, your actors, your users, your likes, etc are all relational, and then you build a document collection that is good for searching movies, a collection that is good for displaying user data/history/settings, a collection for displaying actors' filmography, etc, but all are generated from the same actual, consistent relational data.