I’m guessing the reason this hasn’t been done before is that the uterus is not a life-critical organ. Yes, it is necessary in order to have children, but there are major risks in transplants, and a lifetime of difficulties, so doing a transplant for something that is not life-threatening was not considered “good medicine”.
I bet that she now has the uterus removed. Unless she wants a second baby first. No point in leaving it in place, I wonder if removing it will allow her to get off the immunosupressents.
That's sounds right. And, yes, I think it has been removed.
Also, it shows how strong the drive to give birth was for this woman. Strong enough that she would assume the added risk of transplant surgery.