It's silly to try to pretend that the island and it's wicked properties didn't play a center role in the series. You're telling me that you would have enjoyed the show just as much if they were lost in a zoo in Zimbabwe?
The donkey wheel, time travel, the inability to have children there, all the egyptian artifacts throughout the island, the pockets of electromagnetism, the inability to find or leave the island unless you follow specific directions, etc. They even built a character, Desmond, that basically was special because he was somehow immune to a lot of that stuff.
As grand was the resolution of all the characters in the show, the resolution of the island, another central character, was kind of an afterthought. And it's sad because they had basically three seasons to do a better job.
I'm personally not angry at anybody, and I thought the ending was good. But they could have done a much better job closing the island arc, and I'm disappointed that they did not.