I'm not sure if I agree or not to be honest. I think there's good things (like you said, make sure the user knows they are doing it), but I have never convinced myself it is absolutely superior.
EDIT: One example of why it may not be good. If there is friction to updating, it means less folks will update (or you have to now take special care to make it as easy to update as if the switch was not there).
But like I said, I'm not convinced one way or another. I think there's cases when it is true, but I lean to that being the exception, not the rule.
