Joannie had a stumble and a few minor bobbles in the SP. Not sure about better skating skills either. She's connected to the music and the audience more than Gracie, though. Anyway, the reason I brought it up is because they could give Gracie 72 and no one can do a thing. It wasn't unheard of to get 70+ for 3x2 combo in the SP.
I think Michelle could have gotten a 72 (or higher) with just a 3Lz-2T and a 3-F.