Even if the match or the event is exciting I could not watch it without these commentators they add value excitement and information to the matches they are the voice of the match or the events, even if you don't know much about the sports that you're watching you'll get insight and information by just listening to these commentators.
Yes, they add value and quality of a specific sports that they are broadcasting rather than on watching the game fully without having any noise out of these commentators.
So i would say that its really that important to have one rather than have nothing at all.I dont know on others on why they do agree on having none
or saying or telling that they arent really seeing this to be that relevant or needed.
They are the great source of information if you are not watching live, they give every details about the games and sometimes educate the viewers as well. Though personally I don't want to hear some commentator because they are bias sometimes and they humiliate other players as well which I think is very inappropriate. In my country, commentators are sometimes like this they are bias and that's why many hates them but still they are active. Well, luckily in international sports we have professional commentators and they really give life to that sports.