GP is pretty clearly talking about blaming the company (processes) and not individuals. The entire post laments the fact that entities external to the company

GP is pretty clearly talking about blaming the company (processes) and not individuals. The entire post laments the fact that entities external to the company will repeatedly forgive the company if the company goes through the motion of publishing a blameless post-mortem. Even if those post-mortems repeatedly indicate the company really didn't learn anything, or change the processes that led up to the incident. But by golly, they're forward thinking company, and therefore blameless.