>The article really assumes you know the acronym PNRG

Why would you be reading this article if you do not?

This is the type of critique given when writing for a general audience, not a scientific whitepaper.

(Fun fact: The AP style guide tells folks to write at an 8th grade level because that's reading level of the average American adult. 8th graders do not read white papers on cryptographic design, and when they do, they look up unknown acronyms just like big boys and girls do.)