@bostondirtdog21_PSN HR/9 doesn’t do anything when playing online.
I agree though, the biggest downfall is not having increased control/break for pitches. There are some sneaky good pitchers though that you could end up making somewhat useable. Some that come to mind:
Richard Bleier
Chris Sale
Tanner Houck
Lou Trivino
Aroldis Chapman (even though his control is atrocious)
66 OVR Bobby Miller is VERY underrated (outlier fastball and sinker for a 66 is crazy lol)