Shizuka was overmarked in the SP. One of the things I distinctly remember about that SP was the shock expressed by Simon Reed (Eurosport commentator) at how outrageously high her marks were for that program. For one thing she downgraded her planned 3Lutz 3L combination to a 3Lutz 2T and there were a number of other blemishes. It was said at the time that she didn't even deserve to be ahead of Kimmie. In my view, she should have been at least 5-6 marks behind Sasha and Irina and only got as close as she did because she was a former world champion.
Much has been said about Shizuka's triple triple combinations. However, most of the time she left them in the practice rink. She did not perform a single one in the LP either, not out of choice, but because as in the SP, she did not have the confidence.
Shizuka won the Olympic competition because she skated conservatively and made no major mistakes - unlike Sasha and Irina. Had Sasha not had the disastrous start to her program, then that would have left Shizuka with a choice. She could either have skated within herself as she ultimately did and gone for one of the minor medals or she could have gone all out for gold. If she had done the latter, I think the lack of confidence she displayed in the short would have been exposed and she would have made mistakes. Remember, prior to the Olympics she had not had the greatest of seasons.
Yes, Sasha was not as good technically re her jumps compared to Shizuka and Irina. However, Sasha more than made up for that with her artistry, her spins, her spirals, and everything else. Anybody who seriously tries to suggest that Shizuka and Irina were better with the artistic side of there skating has got to be joking. The real pity about Sasha was that her jumping ability let her down persistently and we never saw her true potential.
My gut instinct is that if Sasha had skated clean, Shizuka would have still skated conservatively and settled for a minor medal. The lack of confidence she showed with the 3 Lutz 2T in the SP demonstrated to me that she did not have the confidence to do anything more than she actually did in the LP. Had she gone for it, she would have probably cracked (as she had done previously throughout 04/05 and 05/06). As for Irina, I knew her LP was likely to turn out the way it did.
Nevertheless, Sasha did fall in her LP and she made major mistakes - as she had done in practically every competition she participated in as a senior. Ultimately, therefore, Shizuka deserved to win. Whilst she was overmarked in the SP, her performance overall was the best.
The greatest tragedy about the 2006 Olympics however is that the best skater at that time was not even allowed to take part - Mao Asada (who had beaten all 3 medalists during the course of the 05/06 season).