sjs – I believe a woman learning is not always ratzon hashem. Depends on how, where, when and why. And if she is “learning” and neglecting other obligations because the learning gives her more spiritual fullfillment than I think that is wrong (and fake). But if all her other obligations have been fullfilled I don’t think that there is anything wrong with her sitting down and learning something.
For example (and if you don’t agree with my premise lets just skip it for now, not trying to start a new fight) the practice of having goyim babysit for your kids on Yom Kippur so you can go to shul. You definitely feel a bigger spiritual uplift by being in shul on Yom Kippur than by being home all day with your kids. However if leaving them with a goyisha babysitter is the wrong thing to do, than no matter how spiritual the ne’eila seems to you, it is not real spirituallity because that was not what hashem wanted from you at that moment. He wanted you to be home and telling them for the 59th time that day that they should not be pulling the toys away from each other – or whatever. (again, I am just giving this as an example so don’t tell me about all the other options of how to work out going to shul on YK that are OK. YK is not my point right now)