As a yonkou fan, I think Oda really did my idolo Kaido dirty by never having YC1 level Luffy react to his pathetic, worm-like presence. Didn't even notice he was here before Law told him during act 1 smh. His Broly-like power should be felt thousands of kilometers away instead.
I'm not even sure my boy would get past Rob Gucci at this point, it really seems like he was just a glorified training tool at this point.