What about the fact that Revelation and Dust is book one of a five book mini-series don't some of you get? If everything was wrapped up in the first book, there would be no need for the other four books.
Take a good look at The Empire Strikes Back. It ended with a cliff-hanger and we have to wait for the next movie to find out what happens. It's the same sort of thing here.
It's not supposed to wrap things up in book one. It's supposed to wrap things up in book five. Yes, some things will be wrapped up before book five, but the entire story won't be wrapped up until book five.
For an in depth response, you can simply read back a few pages. But to sum it up: this book had no story arc of its own. Therefore, it's not comparable to TESB, since that movie had a complete arc of its own, even though it ended on a cliff-hanger.