What do you mean by "repeat of '06?" Sasha didn't pull out of course. (And if you are talking about Michelle Kwan, her 2006 assignment and subsequent pull-out of Olympics was absolutely about physical injury. To my knowledge, nobody has ever caught Michelle chickening out in the face of tough competition. And--importantly--she pulled out in time to allow her replacement to get fired up and compete.)
If Sasha did get selected for Olympic team, got there, and then chickened out of the competition, her name would be mud forever among skating fans. Possibly sponsors also. You don't go for the Gusto unless you intend to follow through all the way once the opportunity presents itself.