After last patch Abrams goes through enemies like collisions don't exist. Sometimes heavy melee just slipping through without any damage or connecting to enemies in general.
Agreed, shoulder charge and heavy melee doesn't feel right on Abrams atm. Feels like shoulder charge clips through people and heavy melee too, feels like hitbox isn't accurate at all.
I think you posted the wrong video... (correct video has since been uploaded above)
Would recommend posting it in one of the originally posted threads I linked above, where more evidence posting and discussion has occurred.