Controversial point, but PGs writing is F-. It seems a lot of effort goes into sounding smart, rather then delivering information required. Who learned anything from above?
The author seems to have expended great effort on terseness, writing in very short sentences which artificially forced him to start more of them with coordinate conjunctions than feels comfortable to me. It did not make for an easy read and all felt rather too self-conscious. Good writing should focus me on the ideas, not the annoying syntactic structure of the writing.
I didn't get on with it.