Because the whole Naruto concept is more jutsu Ninja. Just count how many Ninja using sword in Naruto.
Sasuke is more like a samurai with outfit like that.
So, when we are drawing ninja (true ninjas), we always imagining these super cool ninjas Ryu Hayabusa (Ninja Gaiden), Strider Hiryu & Hotsuma (Shinobi)
Okay, that's just plain awesome. "Suiton: Water Shuriken!"
Yeah, keep going. I kinda regret Chesnaugh was slimer than expected, but this ... It's just perfect.