I'd have more sympathy for feminists and advocates if their rhetoric didn't so often contain statements like this:

"Whether or not the police believe the story has the ring of truth is not their analysis to make. They are to investigate and charge."

The police should investigate, and determine whether charges are warranted. If so, they should proceed with charges or close the case if they aren't.

It's the job of police to analyze the evidence before them. If the evidence is weak, such as when a witness offers conflicting statements of fact, or is untruthful, charging is dubious. Even if an assault did take place, the likelihood of conviction in those cases is small. Furthermore, proceeding with the charges will put the victim through the legal wringer that the author criticizes. She'll have to testify, and her every word will be rigorously challenged by a defence lawyer. Then she may watch the accused walk free.