For the same reason many overlook Matt Serra beating GSP. Its because many feel that JDS won despite not being really in Velasquez league. We as mma fans know anyone can get caught and beat. They are all human but its generally understood that Velasquez was the noticably more talented fighter. The man is a phenom. No disrespect to JDS great fighter but not in Velasquez league and many of us have been saying this since the first fight. Matt Serra beating GSP was so overlooked there was never a rubber match. This fight there almost definitely will be and JDS is much better than Serra but the premise remains the same. Many were just not convinced JDS was even in Velasquez league deapite pulling off the win. Again JDS? At worst a top 5 guy but Velaquez is number 1 and i think many following his career knew he was by far and away the beat HW on the planet.