HeLeiVi – The point I was making from that was that during the entire course of the controversy not a single mention of the chazoro was made, something which would have calmed the situation immensely. Sure, it might not have saved the whole book-banning thing but the more sordid parts of the affair would have been avoided. So the question must be asked: why no mention?
I think your point about how open the learning of Kabbala was pre-Ramban is quite a good one, except for the fact that two of the people quoted as being against reincarnation definitely studied it (Rav Saadiah Gaon, R’ Crescas) one of whom was post-Ramban (R’ Crescas) so I’m not sure it entirely explains why some were against reincarnation.