The overlapping generations will be the eventual undoing however it take 50 years or more still. The current GB won't have to worry about answering for it which is sad but eventually with so much hinging on 1914 even if the overlapped contemporaries don't reach max age I think as that clock winds down you'll see many completely lose faith.
I don't think it is a coincidence that the teaching is such that the current GB will be long gone before it ever has a chance to see fruition. They'll never have to answer for a lick of it which is rather irritating to me.