So, in thinking this through, there is a sense I get that the writers are trying to make me feel what the islanders are supposed to be feeling, that they are pawns in a game they don’t know the rules to.
There seem to be no rules in this story, so it’s unfair to try to figure anything out. Libby was a useless point of plot as her character did not advance the story. Anna Lucia was the same. Her presence did NOTHING to advance any plot. Unless you, like me, believe the plot is not about the characters in the story, but the audience watching the show. We are the story.