Isn't all of this just blown out of proportion? Why not focus on how to help improve ember.js than one person's response? Even if that person contributes to the documentation and to the project. Get over it already.
It's incredibly out of proportion - but people really want to use ember (because it promises all these great things!) and they're frustrated by the docs (because they're not really good for first time users) so this is kind of a flash point.