Once the cultists were cleared, the journey restarted, once the alliance officers came and took statements from the people of the compartment that had lost its door.
One of the passengers was a cultist who opened a way inside. If not for the Red Mage, who was travelling on the same train incognito, it could have been worse.
A long battle could have started, injuries and fatalities could have occurred among the passengers. The officers believed that they were lucky.
Though not much damage has occurred, there was still some damage, especially to the train tracks and the door that was blasted open by the undercover cultist.
If it were just that, the train would have moved a long time ago, but that was not the case. The tracks were gone. There was no way for the train to move. So, they had to wait for a new train from the other side. Until the tracks are repaired, nothing can move along the line.