In fact, there was one thing Tangmo didn't mention, that is, one possible reason the headquarters puts so much importance on the Advance Team might not only be because of Luoer, but also largely due to the identity of Cheng Ziang.
Although the headquarters had gained a foothold in the southern region of Ilanadale, without shedding a single drop of blood, thanks to the identity of the Luoer family, the truth was that, in the short term, Ilanadale probably would not recognize the identity of the Luoer siblings.
The primary reason Nina is able to reassume her role as a princess is that she officially renounced the Luoer siblings, otherwise, even as the queen's only daughter, it would be unlikely for her to seize the opportunity to reconnect with the upper echelons of Ilanadale if she insisted on not giving up the Luoer siblings.