Board Thread:Theories and Speculation/@comment-27821284-20160218112823/@comment-26369387-20160222173546

^Even then, it took time for Madara to awake Rinnegan.

Also, Hinata was stated to have Hamura's blood, meaning she should have some amount of his DNA within her beside Byakugan. Hamura's chakra would then react to that DNA, and after time(which would be longer than with Toneri), Hinata would awake Tenseigan.