Why is Jon King, in response to your deadspin article: Really, I think it was a means to an end. GRRM states that the show will “parallel” the books even though they will not follow it exactly. What I think this means is that Jon will end up King in the books and the show needed to get us there in a meaning full and semi-satisfactory way.How will he become king in the books, the short answer is Robb’s will. Robb never states directly that he will definitely name Jon his heir, but he tell Cat

poorquentyn:

Yeah, that’s probably my single biggest issue with the show right there, something that @racefortheironthrone has talked about before: the writers have the end in mind, but their means of getting there are increasingly muddled, contradictory, and IMO unsatisfying. And that really matters, because at the core of GRRM’s project with this series is the idea that the genre has been making things too easy and automatic for its protagonists, and that the heroes need to earn that status. 

In other words, GoT has become exactly the kind of fantasy story that ASOIAF was written to critique.