What happened to the  false claims? Were criminal charges laid against the complaintant- apparently not becasue they are in the "unfounded category". False claims are very common in family law courts because they provide tremendous leverage to the female litigant given the majority of those disputes are settled rather than litigated before the courts. Any experienced family law lawyer will tell you that.  So take the unfounded divided by gender, subtract the overlapping family law/sexual assault claims, subtract the remaining false claims and the insufficient evidence claims. Is there still a story that merits such unprecidented action of opening cases of the last decade.
Any guy that is now going to be charged will have the original police report to rely on which will state there was not reasonable grounds for laying the charge. That will be exhibit A of the defence counsel who need only to demonstrate reasonable doubt to obtain an acquittal.  The police can't delete their notes.