Certainly disgusting, but this is normal in Pakistani politics and society, making rumours about the ladies in the house to hurt someone, be it Fatima Jinnah, Benazir Bhutto, Maryam Nawaz or now Bushra Bibi. We should all condemn it.
Regarding divorce and iddat, she mentioned she married 5 to 6 months after her divorce, how is that possible when she got divorced in 15 November and married IK on 1 January, that is like 2 months after. So it could be possible she got divorced in September and then final divorced in November when her iddat also finished. She also stayed at her husband house during iddat because she got 1 divorce and husband didn't do ruju and he gave 2 more talaqs. So total 3 talaqs given by November and then she left the house with her iddat completed.
Last confusing point is did IK ring the molvi to read the 2nd Nikah and why did he do so? Is this true or false only IK can say but that molvi was a senior Pti leader.