This is "news" only to people who don't have a clue how research works - and usually the ones setting the publication criteria - like "you have to publish 2 journal papers per year" for an assistant professor (fresh post-doc or a PhD student), along with all the teaching load, of course. I was teaching 10 different courses (!) one semester and was still expected to actually do research half of my time and to publish those 2 journal papers.
Never mind that shepherding a journal paper through the review process and publication takes a year or two on average alone, plus you have to actually have something to publish to begin with. Even conference papers can take 6 months to publish and you must attend them as well (but nobody wants to pay for that!).
The prolific "publishers" are mostly professors that are heads of labs. They are not actually doing any of the work themselves. It is the young PhD students and post-docs who are slaving away in the lab, writing the papers and then put the name of the prof on the paper as a coauthor. It is a very common practice, basically giving a nod to the prof for paying their salary and letting them graduate. If you have a large lab with 20 PhDs who write 1-2 papers a year, that's alone 40 papers for the prof's CV annually. Then you get invited to contribute to various book chapters (again PhD students write that), you get invited lectures and what not - all that counts as publications.
The young researchers have absolutely no chance to break through in such competition where the number of publications is a criteria. You can have two very good papers but when you apply for an academic job, you have no chance against a guy with 40+ (no matter that most of them are the same thing publishes under different names or it isn't really their work). Unfortunately, that often leads to BS publications - like doing few minor changes and publishing the same work several times in different venues, publishing obvious, non-interesting "results" in minor, often in-house workshops or conferences, in the worse cases even scientific fraud and various misconduct - all for the sake of getting that number of publications up. It is only your job and chance for tenure that is at stake.
I have left university pretty much because of this - with no/not enough publications no chance to get a permanent position, but no chance to get those papers published if all you are doing is teaching teaching and more teaching (even though I love teaching). And when not teaching you are doing paperwork and trying to justify your own existence to various clueless bureaucrats every few months so that they don't cut your funding again. That's not exactly a situation where you can do research.