It's just style. I currently prefer mustache, but used to prefer something much more similar to angular (PURE templates). One is not any better than the other, just takes some getting used to.
Sorry by style I meant the whole {{ bind-attr }} stuff. I think I read too much into it, you can do simple binding just like Angular e.g. {{ user.firstName }} it's just for HTML elements.
Feel like I should try out Ember over the weekend.
The HTML mustache style puts me off though I have to admit!