Board Thread:Boruto: Naruto the Movie/@comment-26010916-20150806143152/@comment-1512913-20150807180802

Sigh, the only 2 known requirements are pure Byakugan and chakra of an Otsutsuki descended from Hamura or directly his chakra. Hinata has the chakra but no Tenseigan, so presumably her Byakugan isn't pure enough. That's all we know, there is nothing to argue about.