Metro aren't excusing the woman or the man. It's first person. We're all capable of making up our minds about this without being led by the nose.
It looks like Metro have bought it from a news agency and have published it without a follow-up interview. They shouldn't have done that because it has loads of holes and is frustrating - particularly in the timeline but also why she believes him, what the reaction of family is and what happened to the baby because I'm sure she has been born by now.
In my experience social services and police would apply for a court order to force him to live separately and would either ban access or more probably allow only strictly supervised access. If that was broken the child would be taken into care. The child may have even been taken into care at birth and that's the reason for the fudginess.
It doesn't surprise me that it hasn't got to court. These things take time and charges might even be dropped. If they are the child protection order would still be in place.
It's not entrapment for the police to do this. They always make it clear that the child is underage and never ask leading questions but let the man do all the talking. The need for clear evidence of a crime is the reason why charges are sometimes dropped.
I don't particularly approve of amateur paedophile hunters but some of them are disciplined at not contaminating evidence and some police forces will accept it.
I don't think it's made up. People do the strangest things. The point of interviewing them is to try to get them to explain why and also to inform others that there might be people like this about. Metro hasn't done anything wrong but it's a shame they didn't do a better job. The writer probably didn't have time and wasn't experienced in this kind of story. Women's real life magazines are much better at it.
I certainly don't think it shouldn't be published.