I was still in (and an 80% believer) when they stopped the ministry school. No more talks from the platform for pale.emperor. I genuinely enjoyed giving talks and studying a subject. When that ended it didn't make sense. The elders were acting all excited and upbeat about it as if it was a wonderful change but you could tell they were putting it on. Even they didn't understand the change.
As for those that've been in for decades, I can totally understand why they'd prefer the safety of not confronting their doubts. Where else would they go? It is worth losing friends you've had 30+ years? Is it worth losing your children, brothers, sisters or parents? The propaganda in the literature and videos always show ex-members as bitter, selfish and dangerous.