It’s because he used to be a guitarist at that era. Congolese people mostly focus on singers. That’s why he was putting an effort to be noticed in videoclips so that people could notice him and those not coming to concerts know his face. Many Congolese guitar players feel like all focus to to the singer and atalaku but they say nothing. But in Extra Musica it was different he & Espe Bass a little bit wanted to fight that. However, Roga Roga and a little bit much ambition and was quickly jealous when someone started to become the main star of the band.
Roga Roga wanted Herman & Regis out of the band, because they were to old and in his opinion didn’t fit with the new team of Dido, the late Kassoul, RAV4, etc. Also he wanted to be the only lead singer and make from Extra Musica his own band like Wenge Maison Mère of Werrason, Quartier Latin of Koffi Olomidé, etc.
See they were already old. If they stayed 5 years more they would become BCBG 2 like JDL, Kibens and Rio. Sonor, Espe Bass & Ramatoulaye were lucky that he weren’t singers, otherwise Roga would also get them out of Extra. He had already reserve drummer and bass-player.