If I were to go out and have a gin and tonic, and somebody decided to rape me later that night, I'd fit that one-in-three statistic, regardless of whether I was drunk or had lowered inhibitions or was completely paralytic and unable to say no or not.
The implicit suggestion is that it's too dangerous for women to go out and have a few drinks. That's why it's victim blaming.
Thank you, that makes sense.