The last season was rushed and the writing was horrible... Way too desperate to wrap things up.
I'm with most on this, I'm not sure I care anymore about the prequel and I used to want to go back and watch the entire series over again from the start... now I just don't care to do so because the end was so disappointing.
I'm glad some are happy with all this, I was really hoping this amazing journey would have done the same for me.... My wife and I loved this series so much and it was really something special, it's just too bad they wrapped it up the way they did. And to think we waited 2 full years for this even pisses me off more.