" the frequency of that pales compared to the number of times a women has been legitimately assaulted and then not able to find any legal recourse. "

Not neccesarily so.  The biggest problem with that pseudo-statistic is, ironically, the same one that resulted in mis/underreporting of sexual assault stats for decades... the authorities for a variety of reasons (disbelief, politics, agendas, gender discrimination, legal definitions, etc) don't obtain and/or report vast numbers of incidents.  

When I have time (on lunch break now) I can fish out a couple of very good reports that validate this statement.  (feel free to down thumb my post for political reasons in the meantime lol)