I'm willing to give them the benefit of the doubt, there's a tendency to write like that when you certainly wouldn't say it like that. It doesn't help that it's an example.

In a real meeting, it might be more like "the email bug last week was a big problem. I'm not trying to blame you, but it can't happen again, so what happened?"

But I'm also inclined to agree with you. If your strategy to maintain quality hinges on people not messing up, you'll have a bad time.