The other explanation is that the random little facts are coincidental and are just planted in the original story just in case. Perhaps there were other random things that didn't come true?
And the other thing is, she may have struck gold in your story, but what is the over all track record?
I dunno. I'm also skeptical. In the end, even if it were supernatural or fate, doesn't mean anyone on Earth would be able to see it.
RE: Does fate exist? (And by extension, is free will an illusion?)