You just changed your argument now from Mihawk to this, you got debunked bad again.


Zolo's sword attack imbued with Haki doesn't prove his sword attack without Haki isn't swordsmanship. 2 different things:
No Haki while improving their martial art technique.
Swordsmanship don't need Haki to improve their sword skills.
Haki is for improve general power level of everyone.