The level of expectation never dipped really so it's not really a case. Did help though that its the first time in over half a decade that he's fought a 2nd time in one year.
I would say its because he is so experienced and he is simply a gifted fighter.. Best in the game hes seen all the styles and hasnt really taken a lot of punishment so hes body and mindremain very young in the ring... I honestly dont see anybody beating him yet.. I could be wrong but I really dont see who can beat him yet..