I think Kathy Keller believes what she is proposing but I do not agree with her premise.
She states that "what would this mean to the original audience would be a significant help in understanding what is being prescribed and why." But then she seems to insist that the message to
the original church should apply to us in our century. I don't agree with this. Paul was writing to the people of his day instructing his church in how to fit into the culture of his day. She draws the conclusion that the only teaching that is forbidden is women to be "authoritative teaching."
Her logic is that God doesn't change. God indeed has changed horses in the middle of the stream as far as how things operate. In the Old Testament we see animal sacrifices. In the New Testament Jesus is the sacrifice for our sins. In the Old Testament the Jews are the chosen. In the New Testament all people are welcomed into the church. Her logic doesn't ring true to me. I believe we can trust God's word, but when men get involved it gets more complicated. Unfortunately, just as scripture was used to justify slavery, scripture can also be misapplied in many other ways.