Nothing major as far as I can tell. The camera is a little too close to really see everything.
It says the bar is lined up over the ball of the foot when approaching it and getting in your starting position, but your weight is distributed over the middle of the foot. When you're in your starting position you have to bend your knees and drop your hips. This slightly pushes your shins forward so if you start with the bar in the shins, it's going to end up being over the ball of the foot when you get into position to initiate the movement. So the position of the bar and the weight distribution at this point are unrelated.
Does that clear things up?