As I wrote in the other thread, Roger was basically toying with Young. Just trying out shots, slices, drop shots, etc. He was in total command all the way. Pretty predictable. Young won nine games in three sets because Federer allowed him to. Total domination. Young will drop to 120 or so in the world, back to challenger matches for awhile. He just needs to work his way back.
Federer was merely trying out the court speed and his shots. It's not worth trying to run around to get every point in round 1 against a player like young.