No shit he said he didn't do enough. He's being criticized to hell and back, what do you expect him to say in a situation where children got raped on his watch? "I did all I could, oh well, sucks to be them! I'll try harder next time folks!"
If you tell people high up within a college organization that one of their faculty members was seen raping a child and then nothing comes of it, logic would lead you to believe that there was nothing to be found, not that they are moralless bastards capable of protecting a pedophile and covering up his rape ring.