That was WELL worth the six years. And a wonderful ending, and a couple of PERFECT closing shots to end it with, very nearly as it began.
And having just watched the pilot again, I’m convinced the producers knew exactly where they were going to end up.
Instead of addressing and answering every single mystery raised, they chose (wisely, in my opinion) to not go that route, at least not completely. We got all the surface answers we needed. But what the producers left us with were not answers that would take all the mystery and wonder out of the show. Instead, they chose to give us comfort and inspiration.
Just like we all need in the face of death or misfortune.
Some fans are already pissed. I, for one, am happy there are still mysteries of the show for us to argue and theorize over for years to come.