Thanks to @Smiling Joe Hesketh for the link
https://www.theringer.com/mlb/2020/8/10/21362068/mlb-babip-low-2020-seasonIf this is true it’s absolutely insane that they are just picking and choosing which parks to install it in and not just putting it in all 30 parks. The fact that we are also only hearing about this now has me thinking MLB told the owners to STFU and not talk about it. Like they did with the baseball shit show last year.. (Another complication: MLB quietly installed potentially exit-speed-suppressing humidors in Fenway Park, Citi Field, and T-Mobile Park prior to this season, extending a list of humidor-equipped parks that previously included Coors Field and Chase Field.) In addition, the aerodynamic drag of the ball has reportedly increased to 2018 levels, which wouldn’t affect exit velocity but would cause batted balls to slow down faster and carry less far.