I didn't bring up that fact to argue against any of that. You're the one bringing up the fact that women's work was overlooked in the past, and because of that "it's about time the prize goes to a woman", as if two wrongs make a right (wrong in the sense of weighing in the scientist's gender to make a decision).
In your first post, you seemed to argue that there are many more people and discoveries deserving of the prize that can be awarded, so the decision of which discovery gets the prize is fairly arbitrary (I would also agree with this). Given that there are many scientists worthy of a Nobel prize, given that some are women, and given what we know about intrinsic biases, it would make sense to make a conscious effort to make sure womens' work does not get overlooked. No one is arguing to award the prize to a woman who has not done work worthy of the prize. But given that there are women who have done work worthy of a Nobel prize, why not make sure they get the award before they die (as in the case of Vera Rubin)? Unless, say, you want to argue that Lene Hau's work is not worthy of a Nobel prize.