I think they were right in making it more about the characters than the mythology. They're on a crazy ass island. I don't think anyone could come up with something about an island that could satisfy everyone on both logistical and surprising levels.
However, keeping the characters as the focus, they were able to tell fantastic character driven and emotional stories. The mythology was handled just right. What people may not realize is that they probably don't really want to know everything about the island. I know I don't. If I did, I wouldn't be able to come in here and have these wond...erful conversations about it, nor would I probably continue to think about the information given to me in the show.
It ended in May, here yet I am in December, almost the next year, trying to theorize and understand it a bit better, hoping for people who actually liked it and care about it to throw what they think at me. People were quick to bash Lindelof and Cuse for saying that the show is about the characters rather than the mythology, but tell me, what was everyone's favorite episodes?
The Constant. Walkabout. People love these episodes because of their emotional power and character-driven narratives. Without episodes like this, Lost may be a lesser entity. The show isn't about the island, but about how the island is the means to develop the characters. The island may be some leftover artifact of a conflict between gods, or land covering a crashed alien spaceship. It doesn't really matter, but the writers give us just enough to go on if we wish to pursue more information.
The traces of mythology that we do get are usually directly related to what the characters have to do, or what information the characters need to reach their goal. We learned about the wheel and the island's ability to transport people to Tunisia because that's what happened during the natural course of the story. We learned about the cave, the light, the stone cork, the smoke monster, etc. because these things greatly factored into Jack's character journey and the overall goal of the story.
I too watched the show almost frequently going "oh god damn it just tell us what the fuck is going on!" but in hindsight, that's not really why I kept watching it. If it weren't for the fantastic characters, good filmmaking, emotional power, and so on, I would have probably grown tired of waiting on answers or explanations long before the show ended, yet my resolve never wavered once.