I did find Alicia change a bit strange. It was as if she had acquired a PTSD from killing too many dead and she couldn't hack it, even when there was obvious danger. I'm not sure I'd buy it as to me it was breaking my disbelief.
I'm not sure that it would happen so, as in my own personal demons, I have only failed once, and in the all the other times I pushed through the hell and sacrificied my sanity, because of it. It's true that PTSDs can halt you from doing things, but if you really need to do, as in Alicia's case, you can do it and suffer later. It's better if you are not pushed into it but people, like Strand, allowed her to heal. It's just in the story, she was healed by her experiencing Wes' betrayal.
I'm glad that Morgan and Al didn't get to see the breakdown of a writer, and miraculous healing of Alicia, because I'm not sure Morgan could have hacked it. There's still something lingering in the background, even though he tries to be the valiant leader. But to be honest, I'm not sure that Fear's group as it has ballooned between the season, has a proper leadership. Instead they are like nomads, going from a place to another, and getting stronger in between.