is one piece episode 645 filler?

Gatz announces with surprise that Hajrudin has been defeated, referring to him as a favored warrior and speaking for everyone when he calls it unexpected. The crowd loves it and starts cheering for Lucy.

Meanwhile, Luffy is helping Ucy to safety, saying he is taking the bull to the corner. Cavendish is unimpressed by Luffy's power, while Bartolomeo seems to enjoy the display.

Rebecca is completely shocked by Lucy's might.