Matt Levine's excellent Bloomberg newsletter "Money Stuff" frequently comments on this - search for the phrase "Everything is securities fraud": many reprehensible things a company does are possibly not technically illegal per se (or it's hard to prove that they are), but they do constitute securities fraud, and that's easier to prove and prosecute.
They avoid making actionable statements. In this case, the CEO did not explicitly assign blame, so it would be difficult to call them a liar. Omitting is different from lying. Using vague terminology isn't lying. So you get stuck with all this corporate talk, where they act as if they're apologizing, but won't even really say what they are specifically apologizing for.
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