It’s very possible that Kandace gained temporary custody over Brandon.
She can’t do that if Sam gets the female captain position.
Having that role is really important, especially due to the recognition and benefits that could come with it.
This could reflect favorably on her if she does venture to fight Kandace in court over Brandon.
Such a course would also avoid Cobra Kai repeating Tory’s villain arcs in the series.
He, at least, had a rapport with her and clearly values her as a student.
Cobra Kai is a sequel series continuing the narrative of the Karate Kid saga, set 30 years after the 1984 All Valley Karate Tournament. It focuses on Johnny Lawrence seeking redemption by reopening the Cobra Kai dojo, reigniting his rivalry with Daniel LaRusso, who strives to maintain balance in his life.