Now it makes perfect sense.
This means Law didn't teleport him out of the way of the attack. Instead, Zoro deflected it and sent the attack above them.
- Kaido and Big Mom uses hakai.
- Zoro showed the best reflexes out of all the SN by reacting first. He reacted before Luffy could react, even though he saw the attack coming, and before Law could teleport out of the way. Zoro reacted while they where launching the attack. That is why Zoro in a panel right next to Big Mom and Kaido. While Killer's panel has a larger gap between him and the only three. Killer stated the attack was too big to evade which shows us he reacted after the attack was launched.
- we then see an impact mark which is the results of Zoro using his haki barrier to block and stop the attack.
- we see Kaido and Big Mom reacting to Zoro blocking hakai
- we see Kid behind Zoro that shows Zoro blocking the attack.
- the fact the none of the SN are getting hit by the attack proves Zoro was using a large barrier haki and strength to block the attack.
- we now see all of the SN trying to evade the attack themselves while Zoro is still blocking.
- Zoro then pushes forward, using all of his strength and power to keep the attack at bay
- we see a new shock wave/explosion which is the result hakai breaking through Zoro's barrier. That when Zoro was hit by the attack. Zoro still redirected the attack.
This explains why nobody thanked Law. It is because he didn't save anyone.