User blog comment:Fliu/Chapter 987: Now It's War!/@comment-29391896-20200811094807/@comment-29391896-20200814080614

I think there should've been a little more indication that Enma wasn't the only wepon that could hurt Kaido or it was Oden himself who was the only person to have hurt Kaido. If Zoro cut Kaido now, I'd be "Yeah cool Zoro, but the Red Sccabards beat you to it". Others will disagree but I felt Enma was set up to be a big part of the the Onigashima war with Hiyori's comments and now that Kaido has been cut, I don't feel giving up Shusui was worth it espeically if does turn out Zoro has connections to Ryuma.

Yeah I know Enma furthers Zoro's strength, but that has no weight in terms of the overal arc imo. It's just giving Zoro a sword that could cut Kaido, that by looks of it doesn't need to cut Kaido again.