I would be surprised to see Sarah back in eligible competition. She seems to me to be very driven and goal-oriented, hence her steady rise in competitive skating and her success in school. That's why her performance this year baffled me. Yes, she was out of shape, but many injured athletes get back in competitive form in less time. As much as she said that she still had skating goals, I think the OGM gave her a subconscious "been there done that" notion that she just couldn't shake.
As far as the ballet comments, I agree they were misplaced. The teacher in my little suburban dance school would never have let any of her students get away with Sarah's round shoulders, exaggerated wrist extension, and unpolished leg positions.