This article is really bad. Having learned Angular and written an app in it, I liked Angular 1.x OK. I think between Angular 1.x and Ember it was mostly a six of one, half dozen of the other question. I went with Angular for my app because I thought "It's backed by Google, they'll grow it responsibly and smartly." Well, color me stupid. I feel pretty burned by Angular 2.0, now not only does the app I wrote need to be 100% rewritten, but everything I spent time learning about Angular 1.x is now wasted effort.

That is the problem with Angular. Angular 2.0. Nothing else this article talks about is really a valid criticism at all. See other comments about that.