Only when we fully understand both points of view can we have a fuller understanding of history. In the case of Fiorenza, I would say that her way of thinking is flawed. She is basically saying that everyone, in writing and interpreting history, has had an agenda. To ask a question about history at all is to show our biases. If we are asking about feminist perspectives in the Bible, chances are that we may twist and misinterpret the meanings of some passages to fit our mold.
Historical objectivity is really a myth.
Even the language that we use when describing a historical event shows our biases. Take, for example, the Gulf War. In American history books, you will read that America and her allies defended Kuwait from hostile agression. I would say that either could be said to be true, from a certain point of view. Only when we fully understand both points of view can we have a fuller understanding of history.