How to understand Qingming moderation?

In my understanding, moderate Tomb-Sweeping Day is because in Tomb-Sweeping Day, a lot of paper is burned, incense is inserted, lamp oil is used, and even firecrackers are set off. These behaviors can easily lead to fire. In the past, firefighters in Yamakaji often died because of this incident, so a moderate Tomb-Sweeping Day means reducing some unnecessary bad habits.