I believe the opposite to that era is the "Dead-ball era" over a hundred years ago.
> During the dead-ball era, baseball was much more of a strategy-driven game, using a style of play now known as small ball or inside baseball. It relied much more on plays such as stolen bases and hit-and-run than on home runs.
This was likely caused by reusing baseballs more, so it should be easy to recreate,
> Before 1921, it was common for a baseball to be in play for over 100 pitches. Players used the same ball until it started to unravel. Early baseball leagues were very cost-conscious, so fans had to throw back balls that had been hit into the stands. The longer the ball was in play, the softer it became—and hitting a heavily used, softer ball for distance is much more difficult than hitting a new, harder one. The ball was also softer to begin with, making home runs less likely.
> During the dead-ball era, baseball was much more of a strategy-driven game, using a style of play now known as small ball or inside baseball. It relied much more on plays such as stolen bases and hit-and-run than on home runs.
This was likely caused by reusing baseballs more, so it should be easy to recreate,
> Before 1921, it was common for a baseball to be in play for over 100 pitches. Players used the same ball until it started to unravel. Early baseball leagues were very cost-conscious, so fans had to throw back balls that had been hit into the stands. The longer the ball was in play, the softer it became—and hitting a heavily used, softer ball for distance is much more difficult than hitting a new, harder one. The ball was also softer to begin with, making home runs less likely.
https://en.wikipedia.org/wiki/Dead-ball_era