Respectfully, the article is terrible from your perspective. To someone not steeped in the state of the art goings on of modern DB it serves as a reasonable int

Respectfully, the article is terrible from your perspective. To someone not steeped in the state of the art goings on of modern DB it serves as a reasonable introduction. E.G. - Imagine yourself with a passing knowledge of RDB based on common web development. This serves as an eye opener. You personally, may not be the intended audience.