By and large the commentators for ACC events have improved immensely in the last 2 or 3 years, especially for the streaming only events. It used to be really bad. (Dr Ty says hi!) But they have settled into a decent group of go-to announcers. No, I certainly do not like them all, but I feel like we usually get knowledgeable, professional announcers. And they usually make reference to info attained at the pregame media availability or direct Q&A's with coaches.
I cant remember who/which sports, but there has been a ton of injury info shared here the first time gleaned by on-air commentator discussion.
There are too many types of injuries or other reasons for player unavailability that most people would want to remain private if it were them. And of course we obviously have medical privacy laws as well. So I get it why we don't often have decent info. if you share all the benign injury stuff for 90% of athletes, but then the 10% is kept hush-hush because it is "personal," then the microscope goes onto those curious outliers, "What is her deal?" Some players share their injuries online. That is their choice. Most do not, which tells you that most probably appreciate the privacy.
But I take it as a constant reminder how silly it is for us to question coaching decisions. Because they always have 10X more info than we do. (That does not even take it into account that they are actual professionals and likely know what they are doing better than us.) It is also important to remember there is a wide gulf between out due to injury and peak performance. A player can be medically cleared but only able to perform at, say, 70% of their peak ability. A coach can see that. A coach can know whether his/her preferred starter at 70% is better or worse than their back-up at 95%.
A good demonstration of this is cross country. Due to the nature of how many can run in the regular season, without causing any harm to your team if they do not place, you will often see wide variance from one race to the next for the same runner. Runners not at their peak are running anyway and that often shows in head scratching results. Because the coach does not have to make the hard call on who is best ready that particular day. That is, until they get to tournament time, and you have to pick a certain number to run. Then the coaches are asking themselves, "who today gives us the best chance to win?"