I don't really know this person, but my quick check is that Omar Artan was named Africa best male referee, so with this official evidence from FIFA it is clear that his performance as a referee must be good. Regarding betting, is this a bet related to the prediction market? because you said that whether that person will referee in the super cup. And then you gave the official UEFA link, so what is there to bet on when Omar Artan will officially referee that match? Is it because of the world cup? I don't think it will have any effect at all even though Omar Artan is currently denied entry by America as a referee for the world cup. He has worked with FIFA and the tournament is different anyway.
I think that we don't know him because we are from a different continent, but in Africa he must be a well-known man. For me this is the first news I have about him as far as I remember.
And I think this has to do both sports bets and prediction markets, but above all applicable to the second. Although I haven't seen the bet either, Omar officiating the super cup seems like one of the typical events where people try to guess what will happen in the future, although I think it would be even less surprising if there were a vote on whether he could finally enter the USA or not.
Entering the U.S is right now not a possibility for Omar because I watched an interview where he was welcomed back home and yes, I would not have guessed he would be officiating the super cup.
It is a good upliftment for him because what the U.S did to him was just to shame him and the African continent, but after being voted the best referee at a time before this incident, I see this as an opportunity to shine despite the perceived shame that might have been brought up on him name and pedigree. He is definitely going to do better with a sterling performance at the super cup.