Just because something was manga fact in the past doesnt mean it remains that way. One jutsu is what was accepted back then. That was many chapters ago. WE HAVE NEW INFORMATION. With this new information,things change. Madara just recently gave us new information along with the actions of kakashi and obito in the manga as proof to back it up. Its the new manga fact, just accept it. Remember, it used to be manga fact that itachi was evil and was doing everything he did for the sake of his own well being. We learned otherwise.but until it was proven wrong, if someone said itachi was good, people would think he was bulshitting. But we learned how that turned out.