Yes, residents should be allowed to rebuild near the San Gabriel Mountain after 4500 acres burned. Their homes were destroyed. Unless the area is prone to fires on regular occasions, residents should be allowed to rebuild their homes. People should be allowed to rebuild as soon as possible so that they can move on.
The residents who previously lived near the San Gabriel Mountain before the fire should be allowed to rebuild now that the danger has passed. Since there was just a huge forest fire, there is little chance of another fire starting while nature rebuilds itself, and as such, the residents should be able to rebuild as well.
Sometimes people do not care about the potential danger a property has, they just want cheap land. If the danger is not too great then I see no reason for anybody being prohibited from building anything on the land. It all comes down to what the cause of the fire was.
The San Gabriel Mountains have been devastated by massive wildfires. This region is especially susceptible to wildfires, and really should not have human development nearby. Therefore, residents should not be allowed to rebuild in the San Gabriel Mountains in areas that were burned by the fires. These areas are too dangerous for people to live; and the costs of protecting homes from wildfires is too great.