The point of an essay (at least pg's style of essay) is to explore a subject and, to a lesser extent, to incite others to explore the subject and their own feelings about it as well.

Unfortunately, the writer here decides not to explore his own feelings fully and his points are made in a few sentences without details or evidence,

"The bits on London or Paris are terribly naïve and missing the point. Whoever is using the word hip for London or art for Paris can only have a vague understanding of what he is talking about"

This smells like an ad-hominem

"Looking into Paul’s ferocious defiance towards school and corporate culture, it is easy to imagine Paul being a rather shy person, who would rather jump in the ocean than being part of anything looking like a team."

Lack of substance really hurts this blog post.