Perhaps it is not a very new or well supported argument, but this is not why TED chose not to show it. The TED curator basically admits that he doesn't agree with the idea and that he also finds it too partisan to distribute. I would be worried if it is really being cut because the curator doesn't agree with it. Now as to whether it is partisan or not, this is not the first TED talk that has that "issue", there are TED talks about creationism, atheism, global warming, contraception, etc.