It's not a moral failing; it's a physiological response. Like 22-year-old Sam, who went out drinking with his girlfriend and best mate in Manchester. A lost phone and a few too many drinks later, and Sam was raped by two men: "When you're being attacked, your body makes the decision between fight, flight or freeze. I froze."
Like all victims everywhere, Sam didn't want to go catatonic. It's not about courage. Whether you freeze for a few seconds or a few hours, it's not a choice. We think it is because it never happens to characters in movies, and it sure as hell never happens in our fantasies. But judging real survivors' performance against a fictional scenario is an objectively shitty thing to do.