I have never worked in the prosecutor's office and have not worked as a criminal defense atty.  My work with victims of sexual assault started before I was a lawyer and has continue in the present, as their immigration atty who can help victims of such crimes get immigration relief.   
I understand that there is a need on the part of some to be certain that the assault was not simply consensual sex gone bad.  However, it annoys me.  People who are victims of assault or robbery rarely have to prove, in the same way, that the assault or robbery was not the result of some misunderstanding in order for their complaints to be taken seriously  Many jurisdiction in many parts of this country are now taking sexual assault much more seriously, but others still deride the complaints.  
Regarding the fighting back, here is some food for thought:  https://www.huffingtonpost.com/entry/women-involuntary-paralysis-freeze-rape-fight-back_us_5936f8e7e4b0099e7faff1dc