You're wrong about Hansen never wrestling for WWE. While he's best known for his career in Japan, he wrestled for the then-WWWF in the late 1970s. His lariat gained infamy for supposedly breaking Bruno Sammartino's neck during a match, even though the injury actually occured due to a botched bodyslam. Because of the storyline of the lariat breaking Bruno's neck, promoters worldwide started claiming enormous power for the move.