Regarding angular, please see this previous discussion: https://news.ycombinator.com/item?id=8651641 There appears to be lots of things the 1000 contributors didn't get. They are after all abandoning Angular 1 and working on Angular 2 which is a completely new framework which just happens to share the same name as the older framework.

I agree designers shouldn't touch code (i.e., javascript). But designers should be able to directly edit the visual aspects (i.e., templates). This was one of the goals of XAML.