hey Smiddy,
Maybe the title is accidently misleading.
The decrease I was referring to was the amount of JW's that have left exclusively because of the failures tied to the 1914 generation prophecy. Not the recent, total amount of active dubs, which has increased over the years. It would be interesting to know how many have left because of disappointment over constantly evolving armageddon timeframes.
It seems ironic that the expectation of imminent salvation, based on a set of dates keeps some in the org, while the same prophecy drives others away.