But can't Zoro just use Asura again after cutting down the soldiers? Cracker's nimble but he's not invincible. And even then, Zoro has a chance of catching Cracker before he can set anything else up. A Tatsumaki after cutting his biscuit soldiers would be enough to catch Cracker off guard?
Tbh, he used Asura at 10% HP on Kaido and did something similar against PX #3 in Saboady. I think he's capable of using it a few times, if he needs to