is one piece episode 362 filler?

At Hogback's lab, 5 minutes earlier, Ryuma mocks how Zoro intends to take the Shusui sword from him. Zoro points out how he has carried three swords, one of which being a broken sword.

The swordsman prepares to fight using two swords. Ryuma revels at the challenge Zoro is presenting and blocks a hard attack.

Ryuma then uses Aubade Coup Droit, shooting bullets of air out of his sword. It would seem to be a draw, as the lab is about to cave-in.

Brook knows that in Ryuma's former life, he was still a fearsome samurai.