is one piece episode 576 filler?

As Panz Fry is being taken into custody by the Marines, Vice Admiral Momonga questions him for his actions in taking the pirates' food from before, Panz Fry states it was because there are other starving people that need it more and that all of the food that Marines take is used for the World Nobles and states they do not need all of the food and question how could the Marines let others starve for the sake of the cruel World Nobles. Momonga states regardless he is still going to Impel Down for being a pirate.