Even though Zhou Tian did have a certain advantage in terms of strength, at the end of the day, he was still just one person. No matter how powerful he was, it didn't mean that those Fire Earthworms posed no threat to him at all.
At that time, the Fire Earthworms had hundreds of members, and given the current environmental conditions of that space, no one could guarantee that new reinforcements wouldn't spring up. Thus, with the Fire Earthworms' advantage, once their numbers grew, it wasn't just a possibility that some of them could pose a threat to Zhou Tian; even the current ones could become a threat once they reached a certain number.
Given the situation at that time, if Zhou Tian could not instantly kill many Fire Earthworms and found himself surrounded by a large number of them, even fighting a war of attrition could potentially threaten his safety.
