I think the OP misread the article he's referring to. The point is not to avoid setting goals, but that if you want to actually get good at anything, you should first learn to create habits, and then just start doing it. Once you're already doing it, it'll be a lot easier to improve, and then go ahead and follow the usual advice on setting goals.

After all, what's the point of setting specific and challenging goals, if you're unable to stick to them?