That was like one of the biggest things I've noticed....I instantly shouted out loud "Soru?!" ... Since, the SFX used there, was the exact same SFX they use for Soru :O Now...if it's really Soru or just a joking gag or both... x'D
Great animation btw!! It has improved so much over these years!! And it is very rewarding to see One Piece getting the animation it deserves. Also it's Zoro's time to shine! The excitement just keeps increasing!!! YEAH!!