I would have to agree with your analysis on Sasha's spirals qualifying as Level 2. Although I am going by memory as well.
To get a level 3, she would at least have to change one of her positions to an unsupported free leg (which she is perfectly capable of). She would also have to change the crossovers between her spirals to something more difficult. I think that along with the final criteria of "use of upper body and/or varied positions" (which she already has) would get her to a Level 3.
I'm not so sure if her change/edge spiral has enough curve in both directions to include it for a Level 3. Or that could be a GOE markdown, I'm not sure.