Because methods with eghty one acupuncture points were accepted as advanced. Ninty acu points were very expensive, and ninty nine were rare and almost impossible to find in the market. The reason Boden could find ninty nine points in the market was because of his brigtness force energy.
It was difficult to find someone to buy it because the brightness force was so rare. But Mady used weapon force, and even if this method was sold in the market, it would have been sold at least a thousand times more than the brightness force.
In addition, hidden acupuncture points would be fatal if not using the right method, Mady took the scrolls and learned about it in tests.
If she simply gave the method but did not explain how to do it, it is likely Harper would be injured while opening those secret spots and never form a soul formation again.
