Commentators here can only speculate as to who is more suited to the position in question. Truth is only those carrying out the selection/interviews actually know and I doubt very much that gender came into it.
What is apparent and unaddressed is that the RAF is still blatantly unaware of the litigation that can follow situations such as this. That is where the risk for reoccurrence is high. The military need to be prepared and advised correctly beforehand and that sadly means professional help that is outwith the skill set it currently has.