One could say that's nothing, they continued even Jack Ryan etc. after their abysmal ratings, but it's very good to see that the viewership, which was minimal even after a huge marketing campaign (second season has undetectable marketing, Amazon knows it's a lost cause), is getting lower uninterruptedly with every episode.
Don't worry Mr Jordan, people care about your books, but they do not care about the 'adaptation'.
They put in a black one with red hair. See there problem solved.