Neither Mel nor Owen knew about Tommy and Ellie coming after them. The deaths of their squadmates were unknown to them. So based on your own criteria of "what only characters know" that doesn't work.
And if Ellie needed information, that's more reason for her to keep them alive.
She spent a year or so retired and out of action raising a child and only came back because of long term trauma caused by Abby's actions.That's not true reflection, she didn't deescalate or show any long term regret for anything she did.
You don't have to be. Basic layman's knowledge of epidemiology and the way vaccines were done are enough. The way vaccines work is that it draws from the immunity a body develops against one strain of the virus. So, you would need to culture the virus in a lab...which it seems Abby's idiot Dad hadn't done...and then develop a treatment by which the weaker strain of the virus can then be injected into people and their body's immune system defeats that virus and gains immunity from all viruses of that kind. Ellie developed naturally occuring immunity, so that means she has strong antibodies, which can only be generated from a living body. Actually cutting open and killing her will destroy the source of all that. The better way is to take those antibodies and see if it works against a cultured lab strain of the virus in the lab.I didn't realize you were an expert on zombie fungus.
Yes it does. Per your "what the characters only know" criteria, it does.That had nothing to do with anything.
Abby and others didn't know that at all. So it's irrelevant.Joel was a bad guy for most of his post apoc life before he met Ellie.
Judging Abby's actions in context, based on what she knows, her actions are evil and unjustifiable. After her father's death,
-- She became a full time war criminal for a warlord (Isaac at WLF).
-- She killed many Seraphites and scars, torturing several of them, most likely people like Lev and Yara.
-- She tortured and brutally murdered Joel after he saved her from zombie infectees.
-- She seduces and sleeps with her former boyfriend Owen despite knowing he's a father to their mutual friend Mel's child.
-- She plots defection and treachery against the WLF.
-- She murders Jesse, someone she didn't know or meet before in cold blood without warning.
Her only kind thing is helping Lev but that's the only kind thing she does in a sea of terrible actions.