No shit skip, of course they shouldn't turn the ball over, or get red cards, or what the fuck ever. Passing gas in the bathroom and think it's perfume; literally shitty analysis I just heard on ESPN.
Why don't sports commentators actually break down plays and strategy?
Only one I can think of is jomboy breaks down pitches sometimes. Showed that the pitcher was releasing at the top of the throw for like 4 pitches of sliders then released like 20 degrees sidearm with another slider but because it was released differently it caught the batter and struck them out. Beautiful breakdown and I appreciated the sport and gamesmanship even more.
I've done sports announcing, and come from a journalism family where my dad taught radio broadcasting.
Sports casting is hard. Like really, really hard. It is very easy to criticize the way someone does it, but it is incredibly difficult to fill hours of silence. I did live commentary for college wrestling, and I was a very knowledgeable high school wrestler, but frankly sometimes there just isn't something exciting or even describable happening. Jockeying for control, positioning, or feeling out an opponent - sometimes the announcing is "they continue struggling!" Then you think of a sport that isn't nonstop action like American football, or God forbid, baseball? Huge swaths of time where there is nothing to say. This is why professional sports casts on major networks have huge teams. They can pull up obscure stats that don't really mean anything, instant replay analysis done nearly live, and a ton of graphics to keep things moving and exciting.
Then you have the issue others have talked about, where your audience may have almost no knowledge of what to you is a deeply technical sport. So every time you explain a wrestling move, or defensive pass coverage, you have to assume no knowledge. You have to explain why someone is doing something, but luckily that actually fills up a bit more time because God forbid you have dead air on a broadcast, so of course you do it. And the type of deep analysis a knowledgeable fan might want is actually really hard to not only come up with live, but while watching something live without the benefit of watching a replay or a better camera angle.
Anyway, my point is that you should try to do an entry level sports broadcasting exercise. Turn the sound off on a game, and try to cast it and record yourself. You will be absolutely shocked at how much silence there is, or how many asinine things you say. Even the "worst" broadcasters that you experience on any major network have such insanely deep knowledge and an ability to just keep spewing information and anecdotes out that I promise you would be so much more impressive if you heard an amateur, or better, tried to do it yourself.
If still feels like there's a niche for a broadcast that does take on the challenge of difficult live analysis. Like there's a chance for someone to deliver that content.
I mentioned tony romo calling out reads in another comment. Give that guy a marker and a dry erase board overlay.
And the type of deep analysis a knowledgeable fan might want is actually really hard to not only come up with live, but while watching something live without the benefit of watching a replay or a better camera angle.
At best, this kind of analysis is given a few minutes in between periods/quarters/halves/innings between commercial breaks and any other stories the network wants to cover.
Even if the announcer gets a generous 25 minutes between when the play happened and when they get a 2 minute spot to talk about it, that's a pretty tight deadline to get a video package together and come up with some talking points. There aren't a lot of people who have both the knowledge of the sport and the skill to put it together in a way that everyone will understand.
As an aside, there's an installation at the Hockey Hall of Fame in Toronto that lets you try your hand at recapping a few games. It's tough even with a script. The announcers are doing it live.