I think what is happening here is that MMA is starting to get past Fedor. We heard this story many times before. Men who were once dominant start to look less imposing. Best example would be Matt Hughes.
remember when he was the most dominant WW in the world. Now he is nowhere in the picture. Same with Chuck Liddell and Wanderlei Silva. One day it will probably happen to Anderson Silva and GSP.
Unless they retire early, on a winning streak, it will happen eventually. Maybie sooner then later.