Even the demo UI gives you the options to stop it from showing the intermediate steps, so your complaint is mostly that the demo doesn't magically pick the best parameters but lets you play with them?
That wasn't obvious from first use and at any rate the resulting diagram for anything above a trivial number of labels is incomprehensible. So magucally arranging labels is not really scalable. You need a differemt visualization model. That should be stated and made clear up front.
