You can't compare anything to the Tour, the Giro 2010 had very "moderate" power numbers too. What it says... I don't know. I like to think that it says that the Giro and Vuelta are "clean(er)" but the Tour is an absolute dopefest with a huge emphasis on "peaking" the program in July.
There is a possibility that Nibali and Basso weren't on transfusions, but you can't say the same about the top guys in the Tour.
There is a possibility that Nibali and Basso weren't on transfusions, but you can't say the same about the top guys in the Tour.