The LSAT isn't nearly as saturated at the top. As the article mentions, in normal years there are only about 700 applicants in the 175-180 range (roughly the top .5%). Compare this with the SAT, where there are over 50,000 students annually in the 1500+ range.
Even at Harvard and Yale Law, the median score is outside this range (173), and all other schools have a lower median.
Even at Harvard and Yale Law, the median score is outside this range (173), and all other schools have a lower median.