I feel that what the author has described is the very opposite of agile.

This article has some fair points on bloated companies, useless meetings and rituals, guesswork-based products, and I wouldn't dare to estimate how many companies could fit into this description, but agile proposes just the opposite (I'd call that "conscious agile").

Even if you read the Scrum guide, you'll see that it does not prescribe most of the things that are commonly attributed to it. Many of these canned practices come from taking things out of context, or from a misunderstanding of the reasoning behind the Agile or Scrum principles.