Heatmaps, motion tracking and 'the next frontier' in mixed martial arts statistical data

Why didn't Michael Johnson defeat Beniel Dariush at UFC Fight Night 73? The question isn't meant to evaluate whether we personally agree with the judges awarding Dariush the split decision victory, but rather, why there was controversy in the first place? The judges themselves were not unanimous and neither was the audience watching. If there's smoke, is there also verifiable fire?
It turns out, we might be able to tap into what drives the belief among some that Johnson deserved the nod if we lo