Is Gintama episode 174 filler?

#174

Are There Still People Who Go To The Ocean And Yell Out 'Bakayaro'? When A Person Is Trapped, Their Inner Door Opens

海に向かってバカヤローとか言う人ってまだいるのだろうか 人は閉じ込められると自分の中の扉が開く

Aired 10 Sept 2009