Yun Jhin's hard stance on the elders' matter made the other organizations who were eyeing the blood throne sect, like hungry piranhas reconsider their intentions.
Normally the other sects were quite wary of the blood throne sects former reputation and they knew that its revival was only a matter of time unless news of Yun Jhin's permanent death appeared.
So they had prepared somewhat for his resurrection but considering that he recreated the sect too fast and too sudden made them unable to act properly after all the grey areas were rather far away from the righteous sects and nearer the evil sects, the evil sects also didn't have much time to check up on the grey area as they were always butting heads with the righteous sects for resources.