And (probably) more humane. Since none of them believes that being a zombie is another state of "being", I don't see how they would even think of letting her turn (as she wanted), like others have suggested.

You obviously have never read the comics. As a loyal fan of both the comics and the tv series, I am more than satisfied with "The Grove". At one point, when Carol said she's gonna take Lizzy and go, I was like "Why don't they kill her and get it over with?" It's a post-apocalypse world, nothing is the same as it was.…