Spoken like someone who has never had to actually do either. Yes, that's certainly the "book" answer, but there are actually some valid opportunities to use public humiliation, and it can be a very effective leadership tool.
No, I never said this woman was a *good* leader. Not defending her act in any way. I just didn't see any direct evidence of that from the quotes provided in the article. It was all a bunch of crying about the harsh language she used when addressing people, and the fact that she got mean and threw things. Again, SFW.
The point about having seen leadership shot in front of subordinates wasn't to display it as a shining example of leadership, more to point out that it is not a situation that leads to instant loss of credibility in front of subordinates.