Board Thread:Theories and Speculation/@comment-28518855-20170711204016/@comment-1512913-20170712100137

It's not true at all that 'if Kaguya had the Tenseigan, she would have used it' There's a thing called plot, she was already powerful as is, I'm sure she had many more powers at her disposal that she didn't use. Madara didn't use Susanoo as jinchuuriki, so by that logic, he could no longer use it. Or Kabuto used Water Release late, in 4th ninja war, so by your logic he didn't have it earlier.

Just look at all the nature's given to characters in 4th databook that we are yet to see them use.