Scientific Reports is the dreg journal of Nature, and this clickbait title of "become a muslim and don't get cancer" with its extremely low sample size and no control group doesn't help to improve that journal's standing.
I thought that's exactly the point of Scientific Reports: to publish "reports" (i.e., not proper "papers") without caring about their impact or importance, as long as the science (however little of it there is) is done properly. i.e., you literally send them stuff that isn't good enough to be published in a proper journal. It's meant to be a dreg journal with low reputation; it's a feature, not a bug. The idea is to allow people to publish their work (e.g. to finish their PhD), but everyone knows that further investigation is needed before stuff should be called a proper finding. I think of it as the "workshop" version of a journal.