I tell you that there Is no real facts that he really went intangible to slip through and it's true, we've no facts. All what you say is just an assumption, but we don't really know what happened. We can just wait to see if Kishimoto explains it better, but unless you show me a link where it's stated he went intangible to do so, we can't say for sure if you're right or not, but you still act like a kid, not wanting to understand what i say and only there to type stupid "lmao" everywhere.
I brought you a link which shows you are wrong, but you actually says that it's fake, that i'm lying. So with all that i already know you're opinion is already biaised. The fact you like Itachi too much, makes you fail to realise things, make you go against facts said by the creator of this manga himself. The link i posted you come from a famous site and they never say BS, but you can believe what you wanted. All what i could do now is to show you this other link(where there are even pictures in it) and hope you understand now that you're wrong. This is the link:
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If it's not the case, then it's not necessary to continue to debate