From the article: "he has a right to prove to us that he is not the beast people believe him to be."
Not sure that's true, TBH. A man who contacts someone claiming to be a 12-year-old girl, sends photos and talks about sex is not someone who has a right to be around anyone's children, even his own.
This isn't a case where either of them think a horrible mistake has been made - he's confessed to his partner. I can understand how hard it must be to walk away having had a child with him - she can't undo that - but really, what other choice does she have in the long-term?
Really horrid situation.