Not only is Qin Yu's destination there, but also because there are fewer people there; only masters can go there, and even if the masters know Brother Xiao Niao is there, they are more interested in searching for the old man Tianxu's legacy.
Brother Xiao Niao is such a hunting target; the benefits are sufficient, but the consequences are significant, and they cannot be compared to the old man Tianxu's legacy.
In simple terms, it's a matter of choice.
Qin Yu considered it from the perspective of those people's interests, which is why she reacted this way.
Thieves want to kill, set fires, and rob for wealth, but those who originally come from the affluent class are less likely to abandon immediate interests and take risks.