This article is nothing new. Mentions of some Corsi, some Fenwick, some common sense observations. And a prediction that is easily to back up, and will most likely come true.
What I did like, is that the author didn't act like it was a for-sure thing, especially in regards to the sabermetrics. They are great pattern showers, but do not predict the future. He used them properly as a reference point.
What I didnt like: He also pointed out that a couple of Avs players were in career years, and that wasn't likely to happen (especially Landeskog and O'Reilly). Not that that isn't true, but I don't see how players reaching a plateau means next year they can't repeat that performance, even if it doesn't mean increasing the numbers. I also never like the assumption that PDO means directly luck. A team can have an above 1000 PDO, because not all teams have equal talent rosters.