You have a strange way of interpreting the Church's teaching. The Pope declared 'in order to remove all doubt' that the Church does not have the authority to ordain women. If in the past and at present the Church does not have this authority, where is it going to get it from? I asked this of you previously but you didn't answer.
The Power of the Keys is the guarantee that the Church will never teach anything which is contrary to the law of God regarding Faith (which includes the Sacraments) and Morals. According to your interpretation the Church would have the power to declare something which is a matter of Faith and Morals to be true in one century and untrue in the next. The Power of the Keys does not give the Church carte blanche to invent truth according to the signs of the times. The Church defines truth for all time.
I doubt that continuing this discussion is going to be very productive as neither of us is likely to retreat from our positions.