Enma was draining Zoro before but not now since Zoro is no longer afraid of it and holding it back, that whole flashback was to point this out!
It was not about being physically weak but mentally, Zoro has let go of that weakness and fear that’s what Enma was trying to teach Zoro, Enma wanted Zoro as it’s master but Zoro was afraid of it, this was pretty simple to understand from the chapter guys come on!
It was not about being physically weak but mentally, Zoro has let go of that weakness and fear that’s what Enma was trying to teach Zoro, Enma wanted Zoro as it’s master but Zoro was afraid of it, this was pretty simple to understand from the chapter guys come on!
Which is why he saying he could died .
This is a issue that Oden did not have since he already past the haki test for the sword for years .
This now comes down to a haki stamina issue the whole Enma aspect not the problem any more.
Which why we still seeing the drain effect at the end of the chapter still since Zoro now just letting his haki go free with out trying to regulate it .