Likewise, "peer review" typically just means that 3 academics read the article and thought it was interesting and worth publishing. It's important to recognize that a reviewer accepting an article for publication does not imply that the reviewer endorses any conclusions or arguments made by the article.
It's usually not a great idea for laymen to be reading academic journal articles, and it's especially not a great idea for the news media to report them. It's not that academia is trying to "hide" things from the public; rather, the academic journals are simply not writing for a public audience, otherwise they'd write differently.
Sadly, there's also the "publish or perish" factor: as an academic, you have to publish something to justify your existence in academia, get tenure, etc. So there's a lot of material that in an ideal world might be considered filler.