This is likely also the reason they clearly discovered this world but were essentially unable to do much about it, choosing instead to send only a small mission here.
After all, don't look at this indigenous civilization as if it's fated to inevitable destruction, their strength is truly not weak.
This is also a typical characteristic of trial worlds containing indigenous civilizations.
After all, for Trial Civilizations, the strength of the Trial World itself must certainly be greater than the strength of the Trial Civilization, even far greater!
Otherwise, given the growth rate of Trial Civilizations, even a slightly stronger trial world would present no difficulty at all.
Under these circumstances, they could only treat such indigenous civilizations with caution.
However, Human Civilization is different.
This is where the foundational advantage brought by a supremely strong warrior becomes apparent.