The technique is clean and technically excellent, but the force generated is also augmented by the fact that Cory goes into the air while executing the throw and comes down hard on top of Joe, who unfortunately has to deal with the double impact from the ground and a middleweight fighter landing on him more or less simultaneously. Although the actual throwing technique is not derived from classic military Ju Jutsu (Senjo Kumiuchi) the closing execution of it in the video is reminiscent of how throws were sometimes performed in the on the battlefields of Japan. As the opponent landed a fully armored (and therefore much heavier than usual) samurai would body slam his enemy, winding him, possibly even crippling him and effectively taking his opponent out of the fight before ending his life with a tanto.
Jigoro Kano, Saigo Shiro and the development of harai goshi
Jigoro Kano, the founder of judo, was able to spar successfully against one of his top students, Saigo Shiro, using uki goshi (see video below). After some time Shiro became adept at countering this technique by stepping forward into the throw as Kano began to execute it. To counter this counter Kano added the second part of the harai goshi - the sweep - to take out Shiro's advancing leg. Thus a new technique was born.
According to Wikipedia, former Russian President Vladimir Putin is noted for his skill in executing Sweeping Hip Throw.
