But what I don't get it this, how can anyone who knows they finally admitted they were not appointed as the faithful and discrete slave go along with that statement? I thought maybe I missed another change or something because they still are making this assumption.
That's actually another desirable effect of having incoherent doctrine - like you many JWs are confused. The ones that try to understand doctrine fail to make sense of it. Through years and years of indoctrination they've trained most JWs to accept that any problems are because of a personal inadequacy and nothing to do with the cult. So they run into something that doesn't make sense, but they just know that it has to make sense. The only conclusion that they can come to is that they're not able to understand and this is just more evidence that they must follow the leadership because they're unable to decipher "the truth" for themselves. They put more trust in the organization and hope to be saved through association, and not through knowledge and understanding of doctrine. They crave the rules because the rules are clear and easy to follow and since they can't understand the basis for the rules they can't question it. Meanwhile, they want to save face so they act like it all just makes perfect sense and the next guy sees this and draws similar conclusions - I'm inadaquate because I don't understand and everyone else does. In truth, though, no one understands and they either just don't care or they're pretending or they invent extra "back story" to the doctrine to make it all fit together.
So in short - no you're not missing something, no you're not lacking in intellect because of your inability to make this all add up. That's just what they want you to believe. In truth, it just doesn't make sense. It doesn't add up. But it's convenient and most JWs are complacent enough not to question and the ones that aren't are mostly controlled by fear. If not, they end up here.