The only person talking about either assault is Hannah, the victim who is no longer here — and so, it's easy to discredit her. Why would someone want to discredit Hannah? Because, well, it's easier. Hannah has been the victim of slut-shaming throughout most of her high school career — and we know that a woman's past is often called into question when deciding whether or not to believe her story of assault. It's a lot easier to say "Well, Hannah's lying, and that's that" than to admit that you've befriended someone capable of such a heinous crime. It's a lot easier than dismantling a social order — or admitting that a rapist could look a lot like you.