No player should have their strategy undermined by the producers of the show. Once the game begins, leave the players alone. If one team destroys another, so be it. Stop with the switching of the tribes already...That's the only twist that bothers me...
Then why didn't you stop watching after Africa? Or Marquesas? Or Amazon? Or All-Stars? Almost all games have a luck component, whether it's rolling dice, shuffling cards, etc. Survivor is first and foremost a show. Whether or not it's "fair" is secondary to whether or not entertaining situations will happen. If things worked out perfectly for a tribe or an alliance, then we'd have a boring season, which is one of the reasons why seasons like Thailand are hated... The dominant alliance waltzed to the Final 5 with almost no real competition, and the dominant member of that alliance won the game. The same goes for Palau.