From a cultural or art critical point of view, this is a negative though. Movies end up being made to appeal to lowest common denominator tastes or themes for a broad audience.
The recent movie Bird Box is a great example. Total garbage, derivative movie, clumsy, contrived villains, manufactured tension with no actual plot driving any of it. Yet became somewhat of a viral hit.
If this is what Netflix’s data lets them optimize towards, count me out.