I think you can under-rotate a jump without getting a UR call. Mirai most likely did UR her 3lz-3t and the 3t was only cheated by less than 1/4 turn and so she got credit for it. Julia also under-rotated her flip but judging from the score I think she got credit for it, as likely it was cheated by less than 1/4 turn. Also did Rachael get any downgrades or is Rachael with 3-2 really on a 61 point SP skater? That confused me.
Can't tell without looking at protocals...BUT 61 is actually pretty decent, all things considered. Before the Olympics, Rachael never hit the the 60 point mark. Oddly enough her score of 58.80 only got her a 5th place placement at Cup of China but a 2nd place finish at Skate America. She did the 3-3 at Skate America, but bot a -3 GOE (fell) and only a 3-2 at Cup of China.