Scapegoat
The iron never lies
Well Khabib is getting to almost legendary status as a fighter. People will tune in to watch him continue his unbeaten streak. It won't be as necessary for him to have great mic skills if the UFC can market it properly. Khabib's soft spoken nature or even silence on the mic could be an advantage if they can sell him as some sort of absolute monster. He has the look of a killer. Use that.
I get what you're saying but it isn't the same. Top 7 PPV purchases all time either have Conor or Brock. And the only reason Lesnar doesn't have more is because he didn't fight more.