We put the scabbards in a status that they don't have, they are not as strong as we imagined, or YC1 as many said. Zoro will make a cut more powerful than all of them combined.
that's why I tell you, these little confrontations that the characters have, like Zoro vs. Denjiro, or Big Mom vs. Marco, are not indicative of anything.
Zoro is much stronger than Denjiro.