jyn doesn't really care about the mercenaries (mostly because oslo didn't have any so there is a disconnect) but she agrees re: the propaganda the una or some other enemy of displaced could exploit from the murder everyone did -- which the una has proven they are already excellent at since they've exploited other displaced missteps to their own benefit to lambaste morningstar

idk how she could help cheris but she could be a sounding board, she knows all about propaganda