The alternatives where Whitney Duan is not in China seem implausible to me. What's the plausible alternative? That Duan is not in China, and has simply been in

The alternatives where Whitney Duan is not in China seem implausible to me. What's the plausible alternative? That Duan is not in China, and has simply been in hiding for years for unexplained reasons? Or maybe, she's actually been dead for years and her ex-husband made up the phone calls to get publicity for his book? The CCP has a long track record of disappearing people without trial. Jack Ma is the most famous/recent example. It's completely plausible that they've done the same to Duan, much more plausible than those alternatives.