By your logic kinemon wasn't suppose to hurt kaido too, cause he went from been beaten by doffy to injuring kaido
Did you even read my post? I said that they will perform signficant attacks on Kaido. The reason any of the Scabbards were able to even cut Kaido was due to their combined Haki reminiscent of Oden's will
All I actually said is that Kid is the ONLY pirate to actually be displayed on an equivalent level to Luffy. Hes only lost to Yonko, like Luffy. Hes injured defeated a BM sweet commander, like Luffy. Hes been heavily portrayed as Luffy's actual rival, not Law.
I EXPECT Law, Killer and Zoro to do big things against the Yonko, however I DONT expect them to be intrinsic to the actual victories against either (i.e., delivering finishing blows). Its not their goals. Luffy and Kid are after One Piece, as BM/Kaido are. Law simply wants to know his role as a D. Killer and Zoro are subordinates.
This is my point. I actually expect Law, Zoro and Killer to handle other major battles once these are left to Kid and Luffy in the end.