I think it'd be a little more potent to just say hey, there's a difference between saying someone is partially responsible for an issue, and pestering them about it (e.g. telling them they did a bad thing when they likely already know - I suspect that is what people want to avoid when they go "blameless"). Blame is blame, and disrespect is disrespect. I like to see them as orthogonal.

The article's fire suppression story doesn't even seem like a blame problem to me. It was a jumping to conclusions problem. But again, maybe I only think this because the definition of "blame" is being played with.