I was thinking more of games like football (Either American or otherwise) where there are so few scores, any single score can totally change the course of the game. Stuff like ball/strike calls and basketball plays all that matters is consistency of what they call for both teams.
If computers can see better than humans, and have more reliable memory than humans, why shouldn't we use them, especially on things like hockey goals, pivotal first downs, etc? Or plays in the last two minutes or so?
Baseball games are longer because of commercials and because hitters and pitchers take their damn sweet time now. A few safe/out reviews wouldn't add more than a few minutes total, having the amount of ads they had in the 1950s and pitch counts would save over half an hour.
And frankly, the NBA officiating is horrible and has been for decades. Home teams and superstars get away with things that everyone else gets called for. Some kind of measure needs to be taken to bring back equal officiating in the sport. So Lebron James gets the same calls everyone else does. The amount of flopping and preferential officiating there is drags down the entire sport, and anyone who protests longer than two seconds gets techs called against them. It's no fun to watch when teams like the Lakers always have tikky tack crap called against the visiting team but then get away with taking ten steps and elbowing a defender in the face.