It's a tough situation. If you make it more difficult for women to come out, as you said, less will. However, as we've tried to make it easier, the doors been opened for false accusations. Without penalty for the false accusations, then the accused are the only ones affected.
I would hope we're past the point that women should be afraid of their abusers or coming out or being labeled something ridiculous. It seems clear to me the message of, if you're raped it's okay to bury the people that did it. I think we're safe enough from that, that we can start to punish false accusations.