The notion that victims of sexual assault are somehow themselves to blame is fairly widespread and not restricted to this specific topic. That has been suggested about rape victims for millennia and is even now specifically protested against (I just now saw a postcard in a coffee shop advertising an upcoming “slut walk” in Denver to address this issue). To me, the societal stays of the notion makes the aforementioned pedophile’s claim different than a criminal’s usual denials. For them to put that into the movie would serve to legitimize the notion that adolescents seduce grown men, which seems rather non-progressive.