Posters in this thread are focused too much on the competition. I doubt Datsyuk cares whether or not this tournament proves he's the best, or that Russian hockey is the best. He won an Olympic Gold in hockey which is a HUGE deal to the Russian public, and he was the team captain at that.
We have to keep in mind that Russia has been starving for this medal since 1992. They don't care how they won it (as long as they didn't get caught cheating or anything), or that politics weakened their main opposition, they just care that they won it. And to Pavel, having that effect on his home country is worth more than the personal glory he achieved from winning the Cup.
I understand why so many people want to put an asterisk to this tournament, but let the man assign whatever meaning he wants to the events in his life.