Sheyan had already obtained the title of 'One Hand to Cover Heaven', but Noah Realm C was kind enough to give the entire Sin'dorei tribe enough time to migrate over. After all, even when ordinary people move to a new place, the process is quite tedious. There was the furniture and other miscellaneous items, but merely choosing a suitable location required some time.
Furthermore, although the place that the Sin'dorei tribe wished to move to was an uninhabited wasteland, it was still theoretically a territory belonging to a sovereign country. The ES Consortium may be influential, but this matter was still quite difficult for them. They needed some time to get everything in order.