By "bother" I mean that I have to accept that either (a) or (b) is true, where-
(a) the flash forward at the end of season 3 was to some date subsequent to the date it aired (which does not seem to be the case with any other flash forward); or
(b) the K/J airport meeting occurred before Jack moved in with Kate, while everyone seems to assume the reverse order.

The timeline on Lostpedia says that the airport meeting is at an unknown time. So just wondering whether this casts doubt on the presumed sequence of these two events.