I think Makhachev (but not 100 % sure) supported Khabib and isn't it was him who called those who attended concert a "fuel for hell"? I remember that Magomedsharipov was on Khabib's side and some Russian fans were disappointed by it. And I don't think that rappers were Dagestani (I think Khabib talked shit to Tatar, Russian and Azerbaijani rappers).
Yes, I think you're right. "Fuel for hell", then walks out to gangster rap?! <45> Dogmatic extremists have no fucking sense lol.