Rob has done knockout, and that's pretty unrelated I feel. I've spent a lot of time doing Knockout and a fair amount of time in Angular and Backbone, and personally I sort of agree with what rob is saying. I feel like they have taken MVC and just loosely applied it in Ember, because they have Models Views and Controllers. I see and understand where his confusion is coming from. I probably also haven't spent enough time with Ember to get it, but I also don't feel like I want to.