Earlier quoted context omitted.
>He just doesn't care to improve his work. Alternatively, you may overestimate how objective these rules are and how much they must correlate with some universal metric for good writing.
Agreed. In my opinion, great writing has to be within the context of the time. A lot of us speak in a manner similar to how PG writes. You wouldn't consider great writing from 1890 with the same set of rules as you would something written in 2020.
No one speaks with explicit sentence delimiters, and most of the criticism made were not of the sequence of words but details the additional visual signals of structure that appear in written but not spoken language.