Accountability is synonymous with responsibility. Identifying who is responsible for a failure is synonymous with blaming. We prefer to use "hold accountable" in formal and polite settings, and "blame" in informal settings, but it has the same meaning.
Using the correct level of politeness and formality is a hygiene factor.
"There has been a failure in accountability, and we're looking into preventing in the future" can be equivalent to (informally and impolitely) "someone here isn't cutting it and we need to figure who that is so we can start getting rid of him".
What the article actually means is that the consequences for failures in accountability should be measured such that it encourages learning, and disclosing problems, and so on. But this needs to happen through demonstrated actions, not language. It's actually preferable to be blunt, honest, and fair: "someone here fucked up; if you can figure who did what, fix it, and coach everybody up on how to prevent it, you will be more respected. if you hide your mistakes you will be less respected, and eventually of little use here."