There's only a .5 difference in PCS. The rest of Mariah's lead came from the TSS. Bradie lost about 3 points from the program's end scoring to the K&C final score.The scoring should have been much closer between Bradie and Mariah. I don't get the 3-point difference on PCS based on what they both did here. There's not much difference. I'm not as enthused about Mariah's programs this season. I actually enjoyed Bradie's programs better last season too. But they both performed here and the point gap is questionable.
ETA: https://ijs.usfigureskating.org/leaderboard/results/2020/29710/CAT002SEG003.html