Avoiding Sages
One of the reasons that Emperor Rael had chosen to freely divulge the existence of the seven new Sages of the Kandrian Empire was because he needed to project power in the battle against the Sekigahara Confederate.
In this case, an open display of power was much more desirable than hidden trump cards due to the fact that he would lose the war for allies if he did not convince the Sage-level nations that the Kandrian Empire had the power to win.
After all, the choice of allying with either side was inherently risky for the Sage-level nations.
After all, what if the side they chose to ally with lost the war?
Then, they would have made an enemy of the victor and the most dominant power in East Panama.
That was a nightmare of a situation.