No, I wouldn't say the current submission's topic has been done to death at all, though I grant you that it touches on topics that have. But it's the other parts that led us to try turning off flags on the story. I would not call the experiment successful.
Part of the art of substantive discussion, which is always in peril on the internet, is (1) to stay in the places that aren't already scorched earth and (2) not scorch them. There is constant temptation to do otherwise, and we all need the discipline to resist it. Generic flamewar topics are black holes that suck in everything that comes their way, so resistance isn't easy, but it's needed.