The people most sensitive to future military technologies must certainly be the frontline soldiers, as their strongest feelings come from whether a certain new piece of equipment is easy to use or not, because this is intimately tied to their lives.
The Knight Mercenary Group's experience had reached an extreme, and as mercenaries, they had to provide all their own equipment, which was different from Shadow, who had the Phantom Brigade backing them—they had seen every nifty gadget out there, so additional drones didn't make much of a stir to them.
But the Knights were different, relying solely on themselves, and with a sense of crisis stimulating the Lord, he had to figure it out.
The Lord put on an air of resignation, they were all cunning old foxes, and he didn't intend to let anyone take advantage unnecessarily. If one wanted real benefits, then they had to pay a real price.