The article makes the false assumption that all angels are the same. Super-Angels aren't super angels purely because of the money they control, but rather their expertise and connections that make them the first choice for startups looking for investment.
Exactly. It's the start-ups that make super angels 'super angels', ignore them for a year or so and the situation would change dramatically. Some of them are so well connected that people would consider giving them some equity just to get them and their network on board.
It also serves as validation to some extent, if 'X' is on board that validates your start-up in the eyes of others.
Nice example, plenty of the YC companies would never receive so much as a byline on the major tech / news sites but as soon as YC invests they're headline news.
