OK, but pitchers may be working up high more in recent seasons to offset the launch angle approach by batters:
I'd expect fewer passed balls on higher pitches.
The Baseball America article says that passed ball/wild pitch chances has remained the same since 2017.
The opportunity rate for wild pitches and passed balls has remained quite static. The overall percentage of balls in the dirt with runners on was 2.3% of pitches in 2017 and is 2.2% of pitches in 2022, according to Baseball Savant.