Federer's not serving as well, he's not hitting his forehand nor backhand as well, his passing shots are a shadow, his volleying certainly hasn't improved.
I can't see how anyone could say that he's a better player now. The most amusing comment is "better player yes, better mover no" considering that he is illustrating no improvements in any part of his 'game' in addition to the fact that movement is an important attribute in someone's level of play.
Fedmug was never good mover, or you maybe think you should be elitte mover to beat players like Rodmug, Fatghatis, Mcbaldian, Safin, Ljubicic or Gonzales
with average movement fedmug would have learned how to beat baby Nadal.
The seal of Fedmug game is serveboting and slicing, and neither one servbot was famous as ellite mover nor slicers are ellitte movers, in the fact opposite, players who are always short one step on court.
So in the case of Federer,the ultimate expierience(15years) is much more important factor than his movement, like Federer simple explained you.
Hope you enjoyed tennis lesson