This won't be a popular opinion, but it's my opinion. This post is not directed at anyone in particular, just a general thought on the art of commentary in itself. Again my opinions here, and I'm a nobody so there shouldn't be any hurt feelings.
My answer is, it just depends. It depends on who is doing the commentary, their knowledge of the game, knowledge of the players, the players individual styles of play and the commentators personality. It also depends on the amount of commentary taking place. It's ok to have some dead air and just let the game "play out" on the screen. Not every shot has to be discussed in a multitude of scenarios unless it's a particular strategic situation the competitor is currently facing.
Some people don't mind the "dead air". Not sure if the majority of the viewing audience prefers detailed shot by shot explanation or only an explanation where the commentator thinks it is needed. The problem with that is that no one knows the level of understanding had by the viewer.
The commentary should not trump the action at or around the table. After all, we're here to watch the streaming pool first and foremost. The commentary is just an informational relay for the viewer To inform the viewer of events taking place out of the frame, or out of the reach of the microphones. To inform the viewers of where the match is at in regards to who has what score, and how many games are left until a victor is determined. The commentator should also be informing the viewers of future matches to take place on the stream and also recap some of the previous matches that a new viewer just tuning in may have missed.
Somewhat off topic here, and I've stated something similar in a previous thread:
On the topic of audio. Why is it none (that I have viewed) of the pool streams have a microphone located above or as close as possible to the table? As a viewer, first and foremost I'm interested to hear a multitude of things that are happening at the source. Some of those things I wish to hear are, 1) The sound of cue impact, I can tell if the hit was pure or not and would like to be able to hear it. 2) The communications that are happening at the table by the players. Both the players barking at each other or berating themselves for a failed attempt, or discussing fouls or potential game/rules situations. Some foul language is to be expected in my opinion, it's not like we're streaming porn, violence or illicit drug use live.
Back on topic:
There are several of the popular commentators/streamers that I have no problems with hearing on stream, and they are very professional and make it enjoyable to listen to. On the flip side though, during a match when there are several people on the mic who are clearly unfit for the task, and usually so inebriated they can't form a complete sentence. The worst is when these people are having their own little party on the microphones and paying the match zero attention. At that point I usually go for the mute button, but I still watch the action on the screen and I'm still very appreciative of them providing the video streaming service. I don't "Expect" professionalism, it's juts a nice added bonus to a freely available production.
Hats off to anyone who can commentate well with clarity, I don't think I could do it very well and appreciate the amount of mental attention and dedication it takes. So there you have it, you asked and I gave my opinions on commentary. I'm probably opening the door for an onslaught of bad comments towards me for stating how I feel about the subject. I'm a big boy and can handle it.
Feedback on my thoughts are always welcomed.
Dopc.