Khabib was able to shut anyones mouth and do it impressively. If he would win most of his fight by UD, he wont be so popular. Actually he is not the best example, as before him, there were no other such impressive fighters from post soviet territory. From the start he has a huge support by fans. Plus he has got charisma. I doubt that Belal has even close amount of fans not to mention charisma.
This game image says it all 
Dominator with 43 UD Reddit is killing him
"Belal "leave it in the hands of the judges" Muhammad" , "Belal ‘remember to set your alarm in 15 minutes’ Muhammad" , "Belal “Crickets in the background” Muhammad". People dont come out with this out of nowhere.Well, we all know that the internet comment section has become really unforgiving. But this was really something
. And of course, there are reasons for people for actually saying those things. Because most of the time those things are true. I believe he should stop playing it safe and actually take some risks. otherwise, he is not going to have the explosive level of performance that people want from him. Even if we talk about Khabib, he was actually finishing people. He did play it safe but he also was explosive when needed. However, Belal is just always playing safely and trying not to lose somehow. That is not what people like to see.