As I said, an interesting way to look at it. In the Hapkido I studied, that was not the way we looked at it. If a person grabbed us somewhere, depending on where, we had more than one technique to defend against that attack. It could be an attack to a body part, our clothing, from front or rear, but we viewed our responses as different techniques to that type of attack. Not a piece of a kata/form. That would mean you could string together as many techniques as you wished and call them a form.
As I understood during my studies, that was a significant distinction. We would not usually end different defenses the same way, even for a defense against a certain type of attack. We might throw the opponent, joint lock a part of the body, attack a nerve pressure point (often to aid in a joint lock), or strike or kick. We might dislocate a joint, throw, pin to the ground, or whatever. However that technique was taught.
Hope that makes some sense.