The answer is “The epistemic state you postulate that I’m in is not possible among human beings.”. If I’m absolutely certain that the situation is as described, I’d kill the man. But I’m a human; I can’t be absolutely certain in this way, and I’m not going to be absolutely certain in any of the real-world situations you want to compare it to. For that matter, the Google engineer who lost his job wasn’t absolutely certain.
The answer is “The epistemic state you postulate that I’m in is not possible among human beings.”. If I’m absolutely certain that the situation is as described, I’d kill the man. But I’m a human; I can’t be absolutely certain in this way, and I’m not going to be absolutely certain in any of the real-world situations you want to compare it to. For that matter, the Google engineer who lost his job wasn’t absolutely certain.