Nobody (sane) is claiming it was faked. What sane non-AI-pilled people are claiming is "Our AI agent went rogue and hacked another company" is a much better story for the stock price than "Our human engineers screwed up a very basic sandboxing and allowed the agent access to things it shouldn't be able to access, and also they screwed up the task in the first place by accidentally giving the agent an impossible task". Only the latter reflects reality, the former is a marketing pitch.