There was another possibility, which was that, as Nightcrypt had said, the mysterious sect was too far away from the Blood Stream Sect, so far that even a projection was difficult to accomplish. That would explain their lack of both confidence and options, which led to their less than perfect decision.
Suspicious, Bai Xiaochun continued to pry Nightcrypt with questions, until even Nightcrypt seemed to be getting confused. Finally, Bai Xiaochun frowned, and then once again resorted to threatening to dunk him in the Heavenspan River. He then asked more questions, even down to the details of the formula to the pill that was needed to open the door. Slowly, he was coming to be convinced that Nightcrypt was telling the truth. Although his answers sometimes conflicted with each other, the overall bigger picture was consistent.