I mean, he took a named, three sword style, haki imbued attack from Zoro, without defending with Haki of his own and survived. Yall don't give him credit for that either, when it's pretty obvious had he blocked the attack with Haki, he wouldn't have fallen.
One thing is certain though, while Luffy, Kid and Law are paired up in this fight against Big Mom and Kaido, we all who know Zoro's getting paired up with. :cheers: