I would feel more sorry for him if he didn't admit that he 'had done things he shouldn't'. He says he's never 'penetrated' a child but he clearly has molested children in some way.
Also, despite knowing that he had sexual feelings towards children, he voluntarily became a foster parent. I'm pretty sure anyone who is a paedophile and has no intention of acting on their impulses doesn't decide to fill their home with vulnerable children.
Bit of a coincidence, too, that one of the children he fostered developed a 'false memory' of being raped by him.
If I honestly thought he was someone who never acted on his feelings and had behaved responsibly and tried to get help, I'd feel sorry for him. But I don't think he is either of those things.
His wife is deluded.