After a mind numbing week of updating all of the templates in our app and thinking about the implications of this change, I'd like to provide a little bit of feedback on this change.
Overall, I view this change as unfavorable. It's not that I dislike the change, it's that I don't find much value in it and it was a very daunting task to push to Ember users.
From what I've gathered the purpose of this change is to "significantly reduce the verbosity of templates". I did not find that my templates either grew or shrank in size, they really remained constant. I believe one of the intended ways for reducing size was the elimination for the need of contentBinding="this"
on {{view}}
helpers. E.g.
{{#each App.photosController}}