That whole story sounds very fishy to me. When I saw that on the news, I thought it was probably bullshit. But what is really weird about it is this: can someone survive without water for 8 days? I don’t think so. Thusly, I don’t believe that girl was down there for 8 days. The police might be right that she was a runaway.
This seems somewhat odd to me. I would think most parents would maintain hope that their child was still alive much longer than eight days, especially if they had no real reason to believe they were dead. (They just said ‘she must have had an accident’.) I couldn’t find any more factual information than there was in the article you provided, though.
I think most police officers would consider ‘visions’ highly suspect – it seems like a way to conceal information you have about an event without revealing how you obtained it. They invoke several other miracles. They may well be right that she ran away, perhaps for a reason that her family would rather not reveal.