The article supplies a half-truth in this regard:
"If you're a scientist applying for a job or a grant, the biggest factor determining your success will be your record of scientific publications."
That's true, but the larger story is "IP"
A friend of mine has spent the past 8 years barely scraping by earning a PhD in Chemistry and working as a post-doc.
His motivation for the investment of time and energy is entrepreneurial: he plans to start a business using his discoveries.
Protecting his business interests means patents, means a closed system, means secrecy until it comes time to publish and he can be assured prior art status.
Beyond that an enormous part of Universities funding comes from IP royalties.