At least I get my headcannons right.
![Suresure :suresure: :suresure:](https://worstgen.alwaysdata.net/images/smilies/symbols/TS96mXm.png)
And by your desciption thats what zoro exactly did. He couldn't fully block the attack and took damage but endured it. It doesn't matter if it was for just few seconds. This attack was designed to kill everyone on the rooftop. If it wasn't for zoro, law wouldn't have teleported everyone out of there alive. Sooo... Copium. ;)