I agree. It makes no sense to delay shipping X-Pro 2's to Fuji retailers as they are assembled, tested, packaged, and shipped. The delayed shipping date of X-Pro 2's from Fuji in Japan tells me that Fuji is having an issue with obtaining components for the cameras from parts suppliers, or Fuji is still tinkering with the camera to cut down on the number of future firmware updates it will need to issue after sales commence.
If the latter is the case, Fuji may be dealing with the law of unintended consequences - making modification "X" to add or better a particular feature, thereby causing an undesired effect "Y" to occur.