He's the kid in the video in light blue. After he was hit, he got up and went to first base then saw that the pitcher was upset about hitting him. So he left first base and went and hugged the pitcher to try and calm him down.
Yea I remember one year watching a walk off win and the kids are in a dog pile celebrating and the coach started pulling them off to line up and shake hands.
The Redskins started all that crap back in the day going to midfield and doing a jig a boo.