Why is he talking as though using objects is out, and using value types is the only valid path with Swift? Especially during a transition phase, which we are i

Why is he talking as though using objects is out, and using value types is the only valid path with Swift? Especially during a transition phase, which we are inescapably in right now, wouldn't it be pragmatic to continue using objects when needed, even if the eventual goal is to end up transitioning to protocol oriented programming? In other words we don't need to conflate Swift with POP, which I think is what he's doing when he talks about the purported problems of NSNotificationCenter.