Preface: I do not know enough of this subject or conflict to speak authoritatively.
If they were told to leave their homes and take a certain path to avoid being bombed, trusted that advice but were bombed on the “safe” path anyway by the very people who told them they would be safe if they took said path, why should they continue to trust whoever told them that?
Furthermore, if there were bombs dropping on and/or around you no matter what you did or who you listened to, simply for existing in the wrong place and at no fault of your own, wouldn’t you rather at least be in the “comfort” of your own home?