For one, when you leave a strict controlling religion like the Jehovah's witnesses that practices shunning, the response you get when you leave that religion is that it's all your fault. You must have done something wrong to get disfellowshipped or they say it was your choice to leave and you know the consequences of leaving Jehovah. And then you lose all your friends you ever knew.
But I wohld reason when I left, they are not a cult because they don't practice weird satanic rituals or something extreme like that, that other cults do. And then I think well, everyone for the most part was so nice to me growing up, in my congegation and they do try to practice good bible priciples in their lives.
But when you try to explain some of the religion's doctrines and practices and how much control they actually have over your life, other people don't get because they never experienced it themselves. And many people think the Jehovah's Witnesses are always sooo nice but they don't know what it's like to actually be a Jehovah's Witness and how you are essentially treated just for leaving the religion which often entails being disfellowshipped which is a cruel form of shunning.