The biggest facts about this disaster (Public Board)
They could relocate people to a more inhabitable area with temporary housing that they set up. It'll take years to rebuild any homes there if they even can. The area is known for their high quality quartz.
https://www.mining.com/web/hurricane-helene-halts-quartz-mines-needed-for-chipmaking/
Maybe they don't want to rebuild the town and would rather just mine it.