BOOOM BOOOM BOOOM!!!
Many strategic considerations flashed in the minds of the Martial Sages of both sides as they fought against each other.
The appearance of seven brand-new Martial Sages on whom they didn't have any strategic intelligence on was unnerving to the Sekigaharan Martial Sages.
This was an extreme failure of intelligence on the part of the Nindo Clan. The fact that their intelligence wing had been unable to learn of the existence of seven new Martial Sages in the Kandrian Empire in and of itself was grounds to abort the operation and return back to the Sekigahara Confederate.
However, they could not do that, for they could not communicate with their Martial Masters.
In other words, they had no choice but to ensure that they fulfilled their part of the strategy no matter what.
Yet, it was deeply sub-optimal.