It's not a fraud, it was expected. The leak was planned to gin up the activists who will gin up the media who will gin up Democrats and women to get out and vote. It's that simple, not to mention a made to order fundraising issue for Dems.
I hear what you are saying. But why the leak? The activists would take all of those actions after the final official decision was released. Why was it good, from their point of view, to leak it before the final decision is announced?