no one knows, im a fan of j-man, but itachi isn't to be taken likely ether, the way i look at it, itachi is hailed as the smartest shinobi, yet he died overusing his dojutsu, one would think knowing ones own weakness would apply restraints in order to further his life span, j-man was hailed as the perfectionist, cause his ability to improvise or expand the limit of a technique beyond its limits, yet he died with a incomplete sage mode, both of them died contradicting their respected titles, but one things for certain, itachi died with izanami tec, but used it when he was resurrected, one may believe if itachi can die with tecs we havent seen i do believe j-man also could be hiding such tecs, maybe counters to itachis visual jutsus, we just dont know, look at hashi, the guy pulled a 1000 hand wood god out of his ass to combat madara and the nine tails, expect the unexpected guys, this is after all, a cartoon, anything is possible.