Vengeance must be served, but not hastily. Satan isn't exactly a wounded army now, though with a few injured plus Gao Yang, at least half the manpower has to be allocated for taking care of them.
Moreover, Big Mister and his crew are still out there floating around. Gao Yang is torn between joining forces with them or proceeding with split actions as they are now. Both have their advantages—uniting increases strength but also enlarges the target, making them easier to spot.
After a brief stop in Messina and finding an opportunity to leave Sicily, Gao Yang didn't ponder much but decisively had Ludwig escort the injured out of Italy first.
Whether waging war or seeking revenge, only when there are no lingering concerns can one fully commit.
Yake must be considered part of the severely wounded, yet Yake refused to leave. Despite just losing an eye, he insisted on staying.
