This article is arrogant and pretentious. Come on, it trivializes one side while glorifying the other beyond reasonable. It seems to say that if you work on a startup you are the cool kid, and otherwise you are loser. Just like high school.
It seems you've missed the point. The article is still arrogant and pretentious but also sarcastic. The writer sees himself as a Passive Income Hacker.
you missed obnoxious I'd add obnoxious in there too.