Long Chen had ignored the bandits. He didn't even try to go in their direction to help the people in the carriage. He wasn't going to involve himself in other people's matters unnecessarily as he flew towards the city, but he didn't know that even if he ignored the troubles, the troubles were going to come looking for him.
The bandits had seen him, and they misunderstood him. They thought that he didn't stop as he was going to tell the guards of the Screen City. Since the bandits were so far away, they realized that they couldn't catch up either after seeing the speed Long Chen was moving at.
The bandit king had no choice but to use a rare treasure that he had possessed for a long time. It was a limited use treasure that only had one use left on it, but the Bandit King knew that he had no choice. He needed more time to break through the defenses of the carriage. Whatever he wanted was more important than the treasure in his hand