That is the title of @Six's newest YouTube video, he goes over some points that I have discussed with some users on this wiki (can't member who). Basically just beating the dead horses that are the Yata Mirror and the Sakegari or Totsuka blade gg. One specific point that we also mentioned here is that the Yata Mirror may be omnidirectional. There actually is a decent scan to prove that this may be true.
Yata Mirror is smaller than Itachi's Susano'o when not actively blocking an attack. ^
Yata Mirror grows to adapt to the size of the 8 branches.^
Also, Itachi is completely blind at this point so imo this is further proof that the Yata Mirror is omnidirectional. This is consistent throughout the anime and manga as well. A question that this video shared with our wiki is if the Totsuka blade needs to STAB in order to seal it's target, or if Itachi could just SLICE an opponent. This I am unsure of, so that's just food for thought really.
Lastly, Six shows in his video that Itachi was actually able to survive Sasuke's strongest jutsu at the time; Kirin, with just his skeletal Susano'o. This just makes him seem more durable than before in my mind.