Can't say I agree with your assessment of a charging call...I have the defender moving forward thus losing legal guarding position. Even if the defender stops momentarily before contact, I'd say the defender needs to re obtain LGP by getting two feet on the floor, torso facing the defender, and in this case, would have to give the proper time and distance for a moving player w/o the ball.
As far as the mechanics, not every place follows NF mechanics. I know in this situation, where I've worked, we only switch on shooting fouls in two person, no switching on offensive fouls, and no long switches.
Finally, the official in question was in his first year in the video.