When the creatures from the portals appeared, the powerhouses of Datar did not make their move yet. Most of the creatures that popped out were on negligible strength. They were simply swarms of at least C rank creatures, with some being in B rank. Only when the truly powerful beings of A rank appeared would they make their move.
Jet and his family, however, were different. Although there was no major population base near their home, a portal had still appeared. There were some villages and small towns around their mansion, but they had warned the people beforehand, so the people had migrated closer to the mansion and moved into the temporary bunkers that had been built by the Armstrong Family.