As Roan had mentioned, their group had traveled on foot for quite some time, which allowed them to battle a lot against demon beasts. The last battle against two Nascent Soul Realm cultivators, though, put them even more on edge. A single mistake, and any of them might have been killed by a single strike of their enemies.
In exchange, these situations were the type that helped one's foundation out the most. Even Calina's recent breakthrough benefited a lot from that last battle. That being said, they didn't need to go out there to battle more demon beasts or other Zasfin groups anytime soon. All they needed was to consolidate what they learned and cultivate calmly.
With that said, Rean and Roan stayed on top of Kentucky's body with Frandin while the others were in the Soul Gem Dimensional Realm. All of them were cultivating.