is one piece episode 460 filler?

The people in Sabaody Archipelago reel from the revelation of the identity of Ace's father. Hancock is surprised that Ace is not Luffy's blood brother, Koby and Helmeppo are also confused, as they thought Ace was also Dragon's son.

Garp recalls a moment before Roger's execution when he visited him for the last time. Roger tells Garp he is expecting a child, although he will be dead by the time that child is born.

Garp does not understand the point of Roger telling him this. Garp says the woman he is having the child with will be killed for associating with him.