Aren't they proposing this would be shown to you for titles you haven't seen, and haven't made an association with yet?

Haven't seen on Netflix, using your (sub)account. This breaks in an annoying way when you saw the artwork previously at your friend's party, or on your spouse's subaccount, etc., and are now skimming the catalogue for the movie (maybe you don't remember the exact title, but know it's in a particular genre list).