They're both, in and of themselves, wrong. I therefore look down on both parties almost equally. I'm not saying that what she did is any more wrong than the actions that prompted it, however, it certainly isn't right, and that's why I don't consider it appropriate.
Regardless of equating it to 'fire', which I certainly didn't intend for anyone to take literally as it is an idiom, I'd think my synopsis at least appropriately defined the situation.
She knowingly tried to out-annoy her co-workers to get them to resolve the issue, and expects that to somehow smooth things over?
Perhaps it's a stupid thing to be arguing about, but you'll have to forgive me if I save my applause for someone not seeking the most annoying way toward peaceful resolution.