Kegan,
That is not the case when done correctly.the drawing hand comes straight back as a result of ,proper back tension,after the release,has happened.It is a subconscious part of follow through,when opposeing forces are released.If you are push pulling and useing proper back tension to hold those opposeing forces,the result is the hand and or arm flying back,to some degree.Howard did it too,although not as dramatically as others.His elbow,did make a move to the rear,if you watch it real closely,and in slow motion.If the hand flying back,is used as a direct part of a conscious release,then you are correct,that it can and will result in string torque.