While they were powerless against Zhou Tian, judging from the situation at that moment, Zhou Tian seemed to have the ability to assassinate any of their members within their own base camp. For those demigods, that situation had become as bad as it could get.
Even if those demigods realized from the start that Zhou Tian, their enemy, was very strong, they had at least thought themselves safe within their base camp when they first went to war with Zhou Tian. But now, Zhou Tian had slapped them hard with reality.
Zhou Tian was far stronger than they had imagined, and it was clear from the current situation that no matter where they hid in the rear, any one of them could not escape death if Zhou Tian wanted them gone.
And since what they called their base camp was no longer able to guarantee their safety, under the threat of Zhou Tian, it naturally meant that there was no place left where those demigods could be considered safe.