I guess even with the company of 16 great accomplished theologians like Dave had in his presence they still could not come up with the right date. So why believe them now?
It all boils down to money. The great reunification will not need to happen where church members will be wasting Dave's money on hotel rooms for a feast site. Now they can join Dave and turn that money over to him. Slick move Dave!
We can conclude that the Haggai prophecy was always speaking of a SPRING event, NOT one in the fall of the year—the period preceding Passover, NOT the one preceding the Fall Holy Days and the Feast of Tabernacles. And also ask: how much more sense does it make that the Church will be reunited a little before the easier-to-assemble-together time of Passover and the Days of Unleavened Bread versus reunification just two-and-a-half weeks before going to completely different Feast sites for eight days when people would have long before made plans and given deposits to attend somewhere else? We wrestled at our Headquarters for months with how this would work, including the Church being reunited on a Friday and then having to turn around and keep the Sabbath together in hundreds of new places just one day later. We knew God would defeat the confusion, but we recognized that additional miracles would have to happen in the wake of the great ones that brought His people back together for this to occur smoothly.