Again, I don't know why we are talking about things not related to this thread at all, but regarding WC 2010, I don't think Yuna's LP was "lifeless" at all.
She fought back hard even though she was not in top mental/physical form, skated perfectly for the first half of the program and had she not fallen on what appeared to be a fully rotated triple salcow (which appeared to sap all her remaining energy and drive), I think she would have skated clean all the way, scored around 140, and the performance would have ranked as one of the greatest comebacks ever. Even with the fall and the popped double axel at the end (two easiest jumps in her program), Yuna still perfectly executed all of her difficult jumps, including the last triple lutz, which she often misses out on when she is tired, and objectively, as her score indicated, it was one of her better performances of Gershwin.
As a fan, it still saddens me that she did not win gold in WC2010, because, really, this was absolutely for Yuna's taking, and with all due respect to Mao, who is clearly a tremendous skater, Mao did not "win" it (Mao placed 2nd in both SP and LP) as much as Yuna "lost" it - after bombing her SP. I would not make that kind of statement at any other time Yuna loses and Mao wins, but really, in this particular case, I think that is a fair assessment.
Regarding her 1st place finish in LP, I thought it validated the fact that Yuna held superior "intangible" qualities over Mao - i.e. artistry and better designed program - as far as 2009-2010 season is concerned. Yuna with two mistakes prevailing over Mao with one downgrade by a slight margin sounds just right to me, especially considering the point differential between the two at the Olympics.
In any event, as people mentioned, the most striking fact about Yuna is that she has never finished off the podium ever in her career, and in every event she participated, she has finished 1st either in SP or LP. You may argue that some results were less deserving or what not, but you can't discredit the whole package. The truth is, Yuna comes from Korea, a country that has held no international influence or power compared to the likes of U.S., Japan or even Russia, and there have been many attempts from many sides to discredit her and bring her down. Heck, such attempts continue to go on as we speak, even after Yuna's historic Olympic win. When you examine Yuna's track record in such context, there is but one truth that emerges - that Yuna is undeniably a great skater.