Please speak in specifics instead of using generalizations to pick on a kid's swing. The lead arm never bars out thus the box is maintained through contact. The swing planes are nearly identical. The rear elbow/hand lead into the hip together correctly and pass through bat lag very efficiently without losing the barrel into the zone or down-out of the zone. The hands snap at the appropriate time allowing the barrel to catch the ball with the hands just in front of the stomach. His backside finishes through the ball as he goes through contact and I am going to guess, unless his dad is Barry Bonds, he should be able to maximize his "genetic potential" quite well with that as a foundation and continued refinement as he grows.
*DING* Round 1 *FIGHT*