@andygreenwald does a good job in his recap. I agree with a lot of this.
"Still, for the life of me I can’t quite understand why Beth died. Was she trying to prove a point? Was she unwilling or unable to continue? Or did she just really want to stab Dawn in the chest? I thought Christine Woods — so good and so underappreciated on Hello Ladies — was exceptional as a leader trapped in a situation she could neither manage nor understand. But one of the side effects of her palpable humanity (how about that single tear after tossing her former cigar pal down the elevator chute!) was empathy. Ultimately, I didn’t get the sense that she was “using” Beth any more than Rick is “using” Daryl or any of his followers. In a death-ravaged dystopia, you have to rely on people for help and sometimes that help isn’t pretty. I’m not entirely convinced that the only other alternative is to stab them. Increasingly, the only difference between groups of morally challenged survivors is whether their names are in the main credits or not. This is an interesting distinction but not necessarily a novel one.
And so nothing happened in that vertiginous hallway, shot so well by directorial MVP Ernest R. Dickerson, that made me believe it had to go down that way. There was a new Dawn ready to step in as soon as the old one fell down. Noah could have been haggled over. He probably could have just escaped again. In truth, Beth’s selfless stabbing wasn’t saving anybody. Except, I suppose, herself. One of the lessons of this season of The Walking Dead is that there are people made for the new world and people who simply can’t cut it. By surviving as long as she had, Beth had cut herself into ribbons. Her suicidal choice of scissors made for a poetic, if unfortunate, final slice."