They must be in denial. How can they not know? Naturally he wouldn't want to talk about it publicly. Not pc.
No, it wasn't that he doesn't know - he clearly does and he did talk about it somewhat - wheat and chafe analogy and also the weakness of mankind and a lack of real Faith in Jesus. He said that some have a mental picture and image of Jesus but he is not their best friend. He also cited the fact that in the last 40 or 50 years sin is increasingly not a sin and anything goes.
It was just that he used the word "pedophile" instead of "homosexuality" or "homosexual" and you know he knows the difference - he's way, way smarter than I am! Although there is that language barrier to a degree. But still.