@Jim Eshelman said
"
"Is it even known whether Rose was in the room at the time of the dictation of the Book?]"
Actually, we know she wasn't. Crowley described this in Equinox of the Gods. Probably because of her psychic connection, he accepted, her input."
Just a thought I toy with from time to time.
Rose was in the room and was acting as a seer, but was fully possessed by Aiwass so she really wasn't "there" at the time.
Much like how the naked savage that attacked Neuburg in the desert was not "really" Crowley but in fact was Choronzon.