they unoffically call the move through imapact a "twist and throw" so yes, it is a throw.
With the right elbow still on or just behind the rt hip,(punch) he says to throw the rt forearm in a half circle (circle line delivery?) around low and left while keeping the upper left arm connection
He wants you to use angled hinging although, no surprise, he doesnt say it in TGM terms.
For what its worth, JH says that using angled hinge (not his words) w/ a punch rt elbow is basically what stopped Hogan's hook.
So in our terms , an "Active" (as opposed to passive) Right Arm extension. A Right ARm Throw. That'd be Hitting then.............with the associated physics producing the Paddle Wheel motion , Angled Hinging.
Interesting. Are his guys kinda fast through the Impact area. Slow in Startdown but laying it on hard through Impact?