With all the available technology to super wizard Sayid, the castaways could never get themselves rescued from the island.
The Dharma computer systems were old. The radio tower was an ancient telecom relic. The one highly advanced piece of technology was the Frozen Donkey Wheel, built by Jacob's brother in Roman times 2000 years ago.
As a commentary on modern technology, LOST has a nostalgic nod to it but it did not help the actual characters solve very many problems. In most cases, technology (and its downfall) was the cause of many of the LOST problems. A modern aircraft falls from the sky. A modern freighter gets blown up at sea. A helicopter runs out of fuel and crashes into the ocean.
The Dharma stations were merely sets in the story lines and not important pieces to the LOST puzzle. They could have been critical clues but became irrelevant and immaterial in the end. The Hatch and the Numbers were supposed to solve key questions on what was the island and who were the Others. Neither were important in the story's conclusion: the hatch was not made by the Others or had any useful purpose in the mission of rescue, and the Numbers were arbitrary candidate designations by a supernatural being called Jacob.
We still don't know whether the smoke monster was an organic life form or some advanced nanobot technology.
The writers led viewers down the paths of scientific reasoning to answer posed mysteries. But science did not play a large role in characters final resting place, in an after life world. Even the mechanics of getting to the after life place was glossed over by the writers - - - was the island a purgatory underworld step to achieve some form of enlightenment in order to get to the sideways reward or was the island truly a nightmare, real world existence?
The use of technology to tell the LOST story could have been better executed by the writers. Even if the technology answers were made up or irrational or theoretical (like most science fiction genres), viewers would understand that prose and move on concurrently with the character stories. But the inability to answer mysteries posed by scientific clues is like the unwanted party guest who overstays his welcome. It is annoying, tedious and disrupts the final enjoyment of the party.
