Part of the issue is that Gail Tredwell's book has not yet been translated into Malayalam, so many of the local people have been left to wonder what claims have been made about the Amma organization. There is a perception that Amma is being targeted with criticism, but the context is probably unclear to many people. This FB comment suggests that there is skepticism on the ground that is based on direct experience--experience that corroborates claims made in Gail's book--regardless of the availability of her book in the local language.
Peace,
kh