Board Thread:Theories and Speculation/@comment-31099706-20170327120301/@comment-25122992-20170405214937

Which cannot be true as well, because a) Black Zetsu himself noted that Sharingan is still a weapon and effectiveness of its use depends on the skill of the user themselves b) there's no evidence that Sasuke's Sharingan was senjutsu-boosted, since CS activation happened only within Tsukuyomi and there's no evidence it happened in the real time.