There are numerous use of force models out there.Perhaps one of the LEOs on here can clarify this, but I'd think that if the person in question was told repeatedly to comply, ie: move away from the mic, sit down, leave, etc, and he did not, would that fall into the resisting category?
IMO, there comes a time when force is needed. During my time in the prison, I was around for more than one cell extraction. If an inmate was told to leave his cell and refused, a group of 5 COs were called in. Once this took place, the time for talking came to an end. The door was opened and all 5 rushed the cell, one slamming into the inmate with a shield, the others each taking an arm and leg. He was forcefully removed. Too much force? IMO, no. If you're given multiple chances to comply and you still refuse, you're bringing on more headache to yourself.
In the model I work within, passive resistance consists of things like simply sitting there, doing nothing, either to comply or to avoid compliance. The classic sit-in where the protestors have to be carried out is a good example of passive resistance.
Active resistance begins when a person does anything to avoid compliance. This can include pulling away, running away, locking your arms or holding them in, and underneath you, and other similar actions. As the level of resistance escalates, active resistance gives way to assaultive behavior, where not only are you resisting being arrested or removed, but you're actively striking at or attempting to injure the officers, not merely get away.
This kid was at the top end of active resistance; none of the videos I've seen of it show him in behavior I see as being assaultive, other than trying to get back through the officers. He's treading that fine line between active resistance, and low-level assaultive behavior.