i think sasukes eye started bleeding after using amaterasu, is because of the already working izanami.
i mean, itachi died before sasuke got his brothers eyes, u agree?
so itachi doesn't know the ems-sasuke, he sure knows about sasukes ems,
but he has no info on the looks and stuff,
so itachi sticked to facts, he knows, means sasuke w normal, bleeding sharingan.
"bleeding-eye"-sasuke is created by itachi.
and btw i kinda liked the chapter...since his first appearance i was always wondering about kabutos background. and one of the main villains can't go along (or die...) without
at least a spotlight on his story...