I don't feel remotely sorry for her. She has had undeserved fame and fortune for years, at the direct expense of the runners who finish behind her - even with this ruling I still feel sorry for THEM. Once in a lifetime chances to win World and Olympic titles gone forever. How does this equate to "poor Semanya".
She isn't being banned retrospectively - she's still got the medals, the times and the money. She seemed to take great pleasure rubbing in her "advantages" by continually flexing her biceps after her "victories", while the women she consistently "beat" with ease lay shattered and disillusioned on the track.
She's had far more than her fair share of "success" and it would have been nothing less than an utter travesty and the death knell for women's athletics, if she and her DSD compatriots had been allowed to continue milking all the gold and glory from their events forever.