This clown doesn't even know what a sentence is. In his first example, he has 1/5 sentences per line. Then he changes it to 1/7 sentences per line, i.e. he moves away from his supposed "one sentence per line" target. Yes, in the text of the article he admits that maybe he was thinking about clauses, but I have a zero tolerance policy towards objectively wrong titles.

And of course, the real solution to the problem of "fussing with the lines of each paragraph so that they all end near the right margin" is to use a text editor that soft-wraps lines. Yes, computers have recently become powerful enough to make that possible while editing the document! Amazing.