I agree.
To me, the central theme of the show has been “man versus his flawed nature.” The whole purpose of the Hanso Foundation/Dharma Initiative/Valenzetti Equation has been to identify and correct the malfunction in human nature that seems to always lead to self-destruction. And this is apparently the nature of Jacob’s game with his brother.
It makes for great drama. However, I get the impression from some fans that they actually expect this TV show to provide a real solution to this problem. It’s like human history will forever be divided... The pre-Lost era, when there were wars and suffering and then we achieved absolute paradise on Earth thanks to J.J. Abrams, Damon Lindelof and Carlton Cuse, the saviors of the universe.