Focused on cultivation and have no one under command?
In other words, it probably means being weak and powerless!
If he was an ordinary disciple from a sect, it wouldn't matter if he didn't have any power. However, as a member of the Imperial family, he was destined to fight from birth. This kind of struggle was even more brutal than the internal disputes in a sect.
If Fairy You Lan were an average talent, she might be able to escape, but clearly, her talent was not only not average, but extraordinarily good. As a result, she was inevitably swept up in the struggle.
In the Cultivation Realm, there is no discrimination between men and women, only the stronger is revered. As long as Fairy You Lan is strong enough, she can also inherit the throne.
If Xu Mu agreed to Fairy You Lan, he would likely be involved as well.
If Fairy You Lan was not strong enough, then he would undoubtedly be implicated.
If things really got out of hand, he would have to leave as soon as possible.