I wasn't a big fan of the choices made this season, at least the back half. The Florence/Mason stuff was okay, but I wasn't a fan of shifting Lounds' fate onto Chilton, Alana and Bedelia served no purpose this season except Alana taking what should have been Chilton's role, Dolarhyde's backstory wasn't developed, and even I think by the end, they definitely took the "Will + Hannibal 4ever" pseudo romance so far it got a little ridiculous.
And to clarify, I'm not a Harris purist. Most of this show, I was actually fascinated by how Fuller worked in stuff from the books while putting his own spin on it. It made it fresh and unpredictable. And I think he made the right choice sticking with Will instead of jettisoning him for some version of Clarice. I just wasn't a big fan of the specific choices the back half of the last season.
Also, Dolarhyde just kind of randomly went crazy (crazier, I guess) and decided to attack Reba and fake his death and ****, and thereby exposed himself, when in the book he did it because he knew Will was onto him. Not only does this take away any motivation for Dolarhyde turning on Reba and reaching his endgame, it also takes away from Will by having Dolarhyde just randomly flip his **** and reveal himself instead of Will actually being a detective and tracking Dolarhyde down himself. But the show never really let Will actually achieve anything without the serial killer revealing himself on his own, or Hannibal holding his hand for him.