Well but House of Cards had such a ridiculous tension arc, that you _really_ couldn't extend it past 3 seasons. And if you try it just gets absurd and nobody can stay emerged anymore. Add to that, that you suddenly need to deal with "you are not allowed to use Spacey anymore" and the attempt to push "women for every job" you end up with a predictable disaster. But even if either wouldn't have happened: They didn't have the writers to keep writing the same quality
