Welcome to Goldenskate, kensal.
I'm catching up on reading this thread now, so I don't know if your question has already been answered, but here's my answer, just in case.
According to the ISU rules, when there is only one competitor for a country, which was true of Russia in this case, the placement number at the end must be 1 or 2, to qualify that nation for three entries next year. Since Artur Gachinski finished with a placement of 3, Russia gets 2 spots next year. They only were entitled to one spot this year. If Takahiko Kozuka had not skated so brilliantly, then Artur probably would have held the second place, and then Russia would have gotten the right to send three entries next year. This is quite possibly why, as someone noted, the audience reaction was subdued, but I feel that Russia having earned a second spot for next year is still good news. To me, it was important for Japanese morale that one of Japan's skaters make it to the podium, and I am so very proud of Taka for doing that. I am also very proud of Artur for doing his part to increase Russia's chances next year, as we move toward Sochi, and I think that is very fitting, and I am quite grateful to Russia for giving us a Worlds this year. I also think the extra time to prepare programmes benefitted the skaters. Maybe the rules should be changed to allow a longer break after the GP series, Euros, and Four Continents. I think it might reduce skater burn-out and injury, and would allow time for small changes to improve their programmes. Just a thought.