The time needed for replay is concerning (and exciting) but at times you have to look through several angles to see the play (not as much in baseball as football).
What about 7 inning baseball games? We played that in HS.
I can recall a game I pitched in 10th grade on the JV team. The Varsity had pitchers and the JV team had one, me. The game was tied after 7 1-1. I recall the coach coming out in the 9th inning, still tied, and asking me if I was tired and I said "Yes coach I'm exhausted" and he said "Well, go get'em." I knew we had no backups.
The game went into the 12th inning and I was at bat planning to strike out and rest and somehow hit the ball to the fence in left field and ended up scoring, but had to pitch the bottom of the 12th and the other team got two runs on some errors and we lost. I struck out something like 20 batters (and walked 7, a regular Nuke Laloush, new league record) and maybe have never been so tired.
We had zero athletic training back then so the notion of icing your arm was unknown at the time.
But, I digress.