You obviously have never played the game and my guess is you don't watch it much either. Jamming a guy in his chest is NEVER holding. NOT EVER!!!
I've watched every time slot of every week of every season for over a decade. He didn't jam he GRABBED. Had he not closed his fist on the uniform and inside of the pad I agree it would have been a jam and not a hold, once the hand CLOSES on part of the uniform or equipment it's a hold.