IMO depend of the type of the project you're building. I'm using Ember because most of the project I work on right now have multiple pages, views and components. Using any other library/toolset would be much harder to achieve the same results. Ember comes with a lot of things in the box, the routes is definitely a game changer compared with with others.
I agree, the same when people use jQuery without have a basic understanding of Javascript.
By the way comments like that make me cry: "I see tools like Macaw actually being the death of front end development". This guy clearly isn't a web designer and doesn't understand the basic principles of front-end, web browser and the web itself.
