Look: I never expected every single detail, or even most of them, to be explained or even acknowledged in the finale. Homer is allowed to nod. I just wish he didn't say, "Night, all" and head off to bed.
Having watched Lost faithfully throughout its run and marveled at the twists and turns, however odd and fanciful, I couldn't help a sense of revulsion at the easy way out the writers took in the show's finale.
After the January 2007 TV Critics Association tour, Lindelof and Cuse discussed Season 3 to date and their plans for the show. The transcript of that conversation proves that they had an endgame in mind years ago.
The mad complexity of Lost merits a grand, glorious finale that will keep people talking for years to come. If the show's writers don't deliver, we may never again see a show as demanding and uniquely entertaining as theirs.