Core soul energy entanglement was like a lock. If you didn't have the right method, you couldn't unlock it. Resorting to brute force could easily result in the destruction of the jade scroll itself.
Fortunately, Chen Fei's practice of the Thousand Thread Technique involved precise control over core soul energy. It was similar to refining medicine, where the properties of the medicinal herbs in the cauldron were in constant conflict.
If core soul energy couldn't adeptly resolve these conflicts, allowing for a greater release of the properties, the result of the alchemy could end up as an explosion.
So, while others might find these core soul energy entangled jade scrolls troublesome, for Chen Fei, it was only a matter of spending some time.