Simon I dont think you read the whole book or your picking or choosing what to read, in one chapter there are question to ask a religion to identify if they are a cult or not, try it and came back to me.
Now not all cults are the same, sleep deprevation and low protein diets are used in many cults but not the witnesses. Regarding jw's they teach not to associate with worldly people, to read their books and not others, become childlike to stop your critical thinking skills "put all your concerns with Jehovah", molding a persons thinking to think only positive things about the society and negative things as wrong or a strong sign of weakness, they make you feel like an outcast (towards people not in "the truth") which will force your cult like persona upon yourself, they use group thinking and not individuality, etc.