How difficult was it for the refugees to get into the stronghold? According to Wang Fugui, he had only seen four people get into the stronghold successfully in his forty years of being alive. All of them were the "distant relatives" of certain important people in the stronghold.
Many of these people came to the stronghold to seek refuge with their relatives but were turned away by the stronghold. So they had to settle down in town and slowly wait for an opportunity to come.
If it was already so difficult for the relatives of important people to get into the stronghold, would Luo Xinyu's claims of giving away three spots even be possible? If you were really that influential, you wouldn't have had to make a deal with the soldiers to go to Stronghold 112. Shouldn't you have gotten them to escort you there directly?
Stupid people think others are stupid.