But still. Even for a large event like that, the language he quoted in the article was kinda creepy. I of course agree that at any time ideas can spark and work can begin that will eventually have a large impact. I'm sure there are CS conferences that use more sober language.
Who knows - perhaps that one day event is where hacker X meets hacker Y and they go on to form company Z, and really do change the world by introducing product Δ.
Though I certainly understand where you're coming from, and how one could read the SuperHappyDevHouse blurb as being extremely egotistical.
Now, if they claimed they were trying to take over the world, that would be hubris. But changing the world? A noble goal if you ask me. Not creepy at all.