The Red Sox 31-5 run started with a 4-game sweep of the Yankees, and over this timeframe, the Yankees offense has been the worst in MLB. There are some incredible dark arts at work here.
Based on plate appearances (650-750 for a full season) that would be 2 seasons of stats by one batter, so those stats equate to a 3.1 WAR per season player. Good for a team average, but yes, confusing in this chart.
You should check out NYY’s plate discipline stuff too. The batted ball data can go up and down but it’s remarkable how they’ve totally lost what has been a pretty consistent team identity