After witnessing Fang Yuxin's abilities, Captain Zhou suggested that she first heal the wounded on their team. All these people had injuries of varying degrees, none of them serious, but even minor wounds could affect one's performance. Moreover, the scent of blood could easily attract zombies.
If the circumstances had allowed, the higher-ups would not have sent out these wounded individuals for missions. But given the lack of manpower in the Safe Zone, they had no other choice.
Those with more severe injuries either stayed in the Safe Hospital or took on simpler tasks within the Safe Zone, making the best use of their capabilities.
Now that they had Fang Yuxin, a Wood Element Superpower User who could heal, Captain Zhou hoped she could treat the wounded first. He didn't demand that Fang Yuxin heal every single one of them, but the fewer injuries they had, the better off they would be and the higher their chances of survival.