Board Thread:Versus Debates/@comment-26636534-20170822151908/@comment-25122992-20170825182815

Yep, that's right "seeing/not seeing through Itachi's illusions" phrase has been meant to be figurative, i.e. it didn't literally refer to the actual genjutsu of Itachi, but to his deception and lies. So, it doesn't relate to the Tsukuomi and the ability to dispell it. In fact, the literal use of it is incorrect anyway, since Sasuke proved to be capable of countering Itachi's genjutsu and even breaking through Tsukuyomi.