Board Thread:Theories and Speculation/@comment-5413572-20150114180437/@comment-6769189-20150223064212

The manga states that the twins inherited chakra. So it's not dispersal through loss. Dispersal doesn't even make sense given the context. We also seen Kaguyas body mutate from eating the Shinjus fruit. She grew horns and an entirely new eye. To say that her eggs were unnaffected wouldn't make sense.

Kaguya has potential for the Tenseigan, but since the Rinne Sharingan is Rinnegan+Sharingan she wouldn't have a need to unlock it, she had a better variant from the start.