I do think it is a slight shift of the Overton Window.
I hope it means that when push comes to shove (and we need to make sure it does) he would say no to males in sport, and to rapists in female prisons.
Which is a very long way from where I want to be. BUT I would be pleased to take those as a given, and move on to no men at all in female prisons, no male patients in female wards, no female prison officers forced to strip search men, no strips searches of women by males, being allowed to request same sex care, etc.