I wrote a lengthy piece on the Walking Dead mid-season finale. It also serves as my overall thoughts on the first half of the fourth season. Lots of comparisons between the show and the source material.
My reaction, having read the comic book, is the exact opposite of yours. I suspect it is because I knew how the story ended. To my mind, the gory finale was not the travesty. I always saw that as inevitable. The bad writing was the way they stretched a single season storyline into a season and a bloated season and a half.
The show tells the story out of sequence which completely changes the context of events. Sometimes the changes make sense and sometimes I really wonder how people who haven't read the comic book are even following things. For example, the entire sequence with "the Governor's" new family" actually occurred prior to him becoming the Governor. He met them on his way to Woodbury. Also, Penny was still alive. Meghan was invented for the show as a stand-in for Penny. armed with that knowledge, I knew she was a goner from the second she appeared on screen and wasn't remotely disappointed when that plot thread was quickly wrapped up.
The Governor greatly outlasted his welcome. This is how season 3 should have ended. I breathed a sigh of relief to be done with the prison and the Gov forever. Shame about Hershel though. He was a bit player in the comic book who wound up taking over other character's story lines on the show because he was played by such a dynamic actor. I'm less bummed about losing the character than I am about losing Scott Wilson. He will be missed.
There is still a lot of room for improvement on the show. But the first half of season 4 was a huge step up from the disater that was the last half of season 3. So, I'll take it. I'm cautiously optimistic that Gimple can do better with a clean slate in the second half of the season.