True enough, but think about it, Naruto started a conversation with Deva path, destroyed it, and finished his conversation with Nagato, this means that when Jiraiya used his jutsu, Nagato heard it as well, yet only the bodies who physically heard the song ended up in the Genjutsu. Concrete evidence that you must snare Nagato in a genjutsu for him to truly be under a genjutsu in my book.dude i kno its speculation but all i am saying is that its possible not absolute but all i am saying is that paths are able to be gotten in genjuts, but all of them at once with one genjutsu might be possible not saying its the truth.