Didn't the article cited debunk that? Citation needed for that claim.
He's very rigid and particular about language. He doesn't like the legal connection between age-of-consent and rape. He sees rape as this thing which MUST be forced, and MUST be violent. If it isn't both of those, it's not rape. He wants a different word for it, and a different charge. He can be very crude and inarticulate, but that opinion isn't invalid.