ypu mean as in if ashura has prop up time it willgive law an opening?
My main point was base Zoro can already deflect Law's slashes just fine, Asura isn't giving him any game changing boost in that department since Zoro is the superior CQC combatant to begin with.
Where Law becomes a threat is when he has room to operate from a comfortable range where his opponents can't parry his attacks. And Asura most likely won't be solving that problem any more than Base Zoro already can.
Where I do see Asura giving a boost in the matchup is sneak up attacks from the rear which we've seen Law try before. So that's definitely something. But that itself is boxing Asura into half of what makes it great. Hence Asura in other matchups =/= Asura in this matchup.
Defeating Law isn't simply a matter of throwing a continent buster at him.