I think that Archeveque Lobobo is doing that to get attention.
Those stories about Wemba sleeping with the wives of his staffmembers and their wives pregnant was already known in Matonge, Tottenhm and Chateaux Rouge in the early 2000s but people were just closing their eyes. Also those stories about Wemba having gay-sex with his staffmembers, sleeping with wives of his musicians and rivals (Rigo Star, Patcho Star, Emeneya, , etc.) and sending his sidechicks to elimate his rivals trought nkisi (Gina Efonge, Evoloko, etc.). It is even said that he slept with all friends of his wife Amazone (which made her not having friends anymore), sleeping with the wife of his son. The bomb was when the news was spread that he made Gianny (the daughter of Stervos Niarcos) prengnant. People started to put attention on it years later when Emeneya made an interview with Cesar Ngadi to respond to Wemba (who claimed Emeneya started hating him, after that he informed him that he already slept his ex'wife Liliane before that Emeneya knew her), claiming that Wemba and Jules Masua tried to have a trio with his ex'wife Liliane for satanic rituals to finish his fame. It became worser when the press claimed that Wemba sended dancer Julie Mulanga to poison Alpatchino, because of dating the same Julie Mulanga. This all made Wemba's reputation being killed, lose all respect that people were giving him and being forbidden to participate to Alpatchino's funerals. Then also Emeneya death, etc.