No?
Itachi is no exception to the rule, the entire Uchiha Clan was fooled.
Itachi just wasn't part of the plan, but what tells you he wasn't fooled exactly?
He believed Obito was Madara, that's plenty fooling.
That and even though he didn't want to, he aided in capturing a few tailed beasts (even indirectly), if he knew about Kaguya's existence and Black Zetsu, he would have tried to stop it.
So stop wanking him and accept reality, he was as much of a puppet as Obito was, if not, even worse since he didn't know that Nagato/Pain was being manipulated. All he knows is that Tobi was Masked Man whom he worked with in the Uchiha Massacre and knows the truth, and all he did was try to kill him with Amaterasu to make sure Sasuke wasn't told about the truth nor manipulated.
Simple as that.
Also this chapter's giving me plenty headache, Madara being done in a few pages after he got his second Rinnegan, replaced by Kaguya and Black Zetsu being the mastermind was badly executed.
The chapter was good, the plot twist was also good..But sadly, it felt rushed, that or it's hard to believe how the story has been rehashed, because it's making Uchihas sound like a bunch of puppets which is sad and unrealistic.