Moreover, Meng Xinian had definitely calculated everything in advance. He couldn't possibly accept this thing for real and then use it to capture everyone at once, as indicated.
The implications were too significant.
People related to those three families, whether directly connected or not, would panic. It was uncertain what actions they might take then.
He couldn't disrupt this balance all at once.
Meng Xinian probably knew this, which is why in the end, he requested to move only a few pieces.
That kid could indeed be very cunning at times.
Even he couldn't figure out how the situation would change after those few pieces were moved.
And Meng Xinian's chess move was risky.
Although he admired Meng Xinian greatly, and his wife treated him like their own child, in the end, it wasn't the reality. Even if it were his own son, he wouldn't easily allow interference in the affairs of state.
Therefore, it was very likely that this submission could infuriate him.