The number of intermediate Mages who hold core technology is too small, eagerly sought after by major powers, Lords, and adventure teams. The personnel available for selection is few, and finding the right ones is even more difficult.
As for those lower-level Mages of research and laborer grades, their numbers are far from making up for the existing vacancies of the Magic Monarchs.
So after a farcical episode, most Magic Monarchs simply clapped their hands and said: "Ha, I just don't believe that we can't do without them!"
Then they turned with their core students and retreated into the Mage Tower to work hands-on themselves.
Although this would somewhat increase time costs, at least they could save themselves the trouble and not have to burden themselves with excessive exchanges with other Mages.
The related research results could still be produced, but by that time, they would have to face another problem.
Time cost is also a cost.