This choice, for these second- and third-rate sects, is indeed somewhat unfair, but the Ten Great Sacred Grounds have no other options.
However, there are concerns about this as well.
"Everyone, have you considered this question? If these people occupy our sacred foundations, we're scattered with our forces in pursuit— can we reclaim our legacy? This is an unknown factor."
"These cultivators who escaped from the Boundless Prison exceeded our expectations in strength. We always thought their strength was far inferior to our Ten Great Sacred Grounds, but now, it seems that might not be entirely true?"
Previously, even Jiang Chen thought that the cultivators who escaped the Boundless Prison should not surpass the Ten Great Sacred Grounds in strength.
But looking at the current situation, that might not be the case.
