Because the most popular songs in the world right now are cheaply made crap songs that've been turned into challenges & the more often than not it's Spanish or Korean. Has to be a real short also, so no 10 minute generiques....
The other issue is that is other cultures have taken a lot from Congolese music but without giving proper credit. A Colombian band literally made a start-to-finish remix of Extra Musica's "Etat major" and it has more views that Extra's original.
I appreciate that they appreciate our music, but still they should indicate somewhere that this is a remix.