Same thing has happened to this season that has happened with previous seasons. Yes, the writers just do not know how to conclude their stories well. They have interesting angles and bring up great sub plots but they don't know how to write endings. Like they're fucking horrible at it. Horrible horrible. They try to do too much with it and come up with too many ideas and never know how to pull them all together in the end. It's a real shame. Because of this they have almost no replay value.
However, giving credit where credit is due, the performances are quite amazing.
"If a man can bridge the gap between life and death ... I mean, if he can live on after his death, then maybe he was a great man."
- James Dean