He has one thing he's very adamant about, he wants to have 100% of the thing he built. That's pretty limiting in terms of how far you can push it, my own idea is that I'd rather have a smaller part of something much larger, but we're not all built the same.
(see: http://www.kalzumeus.com/2010/09/02/new-trends-in-startup-in... , the last paragraph).
I think this is all about having your comfort zone and learning to walk before learning how to run.
Having read/skimmed Sebastian's article, it felt as though something ignorant and grand-standing had just trampled that.