It always amazes me how balanced the game of baseball is compared to other sports. It's been around for more than a century and people have become so much stronger and faster on both sides of the ball. Still, offense and defense remain so perfectly matched. The bases remain 90 feet apart and the pitcher still throws from 60 feet away. A home run is still 400 feet.
Consider basketball which has had to dramatically rebalance the rules over time. Restrictions on time in the paint, the 3 point line, perimeter defense, etc. Or how hockey changed all the rules after the lockout. Or how football has totally re worked pass defense and special teams.
Baseball is just baseball.