The central themes of the original series are certainly present in the series. I think people -- including Krugman -- are occasionally missing the forest for the trees, because the show is radically restructuring and revising the story in order to make it more compelling as TV drama (at least in the eyes of the showrunners). I'm not sure I like all of the changes, but I just don't agree with critics who say that the show is missing the thematic point of the books.