https://thenextweb.com/insider/2016/03/20/data-inspires-crea...
I can't argue against that kind of logic but also agree that it leaves Netflix offerings quite flat. The Crown is also a very good show, but you can almost feel the cross-section of Downton Abbey and The Kings Speech as you watch. I don't think you'd see the algorithm come up with a show like Transparent, for example.
IMO it's gotten worse with all this Marvel stuff. Maybe that's because I see it promoted more than other shows, but having tried a few they're pretty uninspired (and, for crossover purposes, all appear to share the same setting and overall feel). I know it isn't the case, but it feels like the algorithm has reached some sort of recursion loop: our viewers like gritty crime dramas starring superheroes, set in New York. So they'll love this new gritty crime drama starring a superhero, set in New York.