There are no pointless techniques, just techniques you would feel uncomfortable using.
One of the junior students at our dojo (we are talking less than a handful of classes) walked up to his car to find it being broken into. He yelled out and one attacker ran up and grabbed him, preparing to punch. Our student, obviously a quick learner, turned in a circle and flung his attacker off in a kokyu nage, kicked his assailant twice in the head (aiki??) and ran away unharmed.