The battlefield had escalated in violence astronomically. Martial Apprentices were those who were able to exceed the limits of their physicality via their Martial Art and their Martial Path. This meant that the scales of power in a fight with eleven Martial Apprentices would far surpass what ordinary humans could do.
If someone from Earth heard the battle from afar, they would no doubt assume they were near a live warzone and immediately flee. If they were to see the battleground of the Martial Apprentices, they would assume a rogue demolition vehicle had gone nuts in the area.
Broken trees, cracked rocks, cratered land, broken carriages, mangled bodies.
It was not conceivable that mere humans were responsible for such devastation.