The whole no means no campaign has made the consent thing much more difficult for rape victims.
There is some excellent work by a feminist whose name escapes me whose research is categorical that it is very unrealistic that women are expected to say a categorical "no". In every other social situation, we are taught to say things without offence and with manners, e.g. a friend calls up to ask you out for dinner and you don't want to go, do you say "no." Or do you say " oh that would have been lovely but actually I have already eaten tonight and don't really have any money etc".
Yet, it is only is a sex situation, which is potentially dangerous if you do offend, that you are expected to be rude and categorical. Men are human beings and know this, and yet the law system perpetuates the consent myth because it suits misogyny.