Although the articles mentions that there is a meaningful financial benefit to the certifications, the challenge is finding industries and companies that recognize and value the certifications. The companies that I have worked at (in particular software) the certifications would be mostly meaningless as a recognition of skill and understanding. Hardware, logistics, regulated companies will likely have a higher value in a PMP or a CRISC.
However, there is a secondary worth to these certifications as a professional. You may end up seeing the world differently. With practice you can begin to intuitively see elements of the certification in your daily professional life. This secondary insight will help you as a professional.
For example, developers with PMP and CRISC don't "pad" estimates, they estimate the risks and unknowns, something that a lot of regular developers don't do. They see estimates as ranges or with relative confidence, those levels of ranges help give better estimates to make better decisions.
The certifications help you indirectly as a professional. That said, you can still skip the certification and read the text books (like the PMBOK), but that won't necessarily fill in all the gaps you may have in understanding.