It has nothing to do with giving credits. I (and I'm sure many others would also) like to read less tabloid-y and factual reporting anytime and so would prefer to read the story on Guardian than on Fox.
But the quotes are literally lifted from the Fox piece. The Guardian does not add much new reporting, it just lays out the existing facts in a way you find more agreeable.
Which is what I thought I made clear when I linked to it i.e. same report, less hyperbole. Perhaps you would have preferred it if I had used the word "version" rather than "report"?