Those are JWs who reject 1914 and even the GB. They claim that Jokehova will cleanse the organisation at the time of the end and only the true servants will survive.
The problem is that that logic can be applied to any church in existence. They might as well go to a Catholic church whilst rejecting some doctrines and keeping their own beliefs. Wouldn't Jokehova also cleanse the Catholic church (or any other church for that matter) at the time of the end and save his true worshippers? What makes JW land still so special?
My brother is like this. It's his get-out-of-jail-free card, so even though he's DFed and the elders treated him like dirt, he persists.
As with any cult, a lot of people like the fellowship, even though it isn't great all the time. Or perhaps they're used to it. They don't want to leave.
But yes. You can apply this to any other church and the logic is satisfied, which is also why householders have every right to say they have their own church. So how is this a selling point?