I agree with you about calamity but this is not mere calamity. It's an abusive relationship. Yes her first option would be patients but She can apply patients in her new life. Allah does not say sit and endure suffering. Having patients and sitting around waiting for things to change and maybe improve is not the same thing. I think this sister has already shown a great deal of patients. She can escape her suffering and still have patients. Divorcing him will not sacrifice her patients. After the divorce she can apply patients in seeking a new spouse who will love her abd treat her right. Allah gave women the right to khula for a reason. Allah wishes no harm on us. She has been patient and suffered enough it's time to end her suffering and seek a new life. Her husband clearly has no respect, no decency and no love for her. Im sorry but she deserves better it's a cry for help we should help her get out and end her pain. It's for the best.