If I understand correctly you're saying the interpretation I've pointed out is not tenable because it carries classical baggage, and yet we've already observed

If I understand correctly you're saying the interpretation I've pointed out is not tenable because it carries classical baggage, and yet we've already observed quantum systems to not behave classically, so if we proceed that way we get a mess. But the whole point of the alternative interpretation I pointed out is a way of reconciling the observations with an essentially classical world (at least in the sense that there is a single objective reality which exists independent of observation)—do you see a way in which it fails to do that? My understanding is that considering the probabilistic aspect of the theory to be modeling our knowledge of the system instead, successfully accounts for the fundamentally 'non-classical' observations. It just seems hasty to throw out such a seemingly well-supported hypothesis (single objective reality independent of viewer), if there are two effective interpretations, one of which conflicts with it, the other of which does not. From my reading, the primary reasons for the mainstream physics community having adopted the stance which competes with the 'objective reality' hypothesis (i.e. Many Worlds or Copenhagen interpretations), are historical accident and political, while the intrinsic merits of the alternatives are near equivalent.