The "rant" is an attention getter, no more no less, a bit of theater. Once everyone is paying attention, then the real purpose begins. Yes, there are other

The "rant" is an attention getter, no more no less, a bit of theater. Once everyone is paying attention, then the real purpose begins. Yes, there are other ways of doing it, but I would argue that none, are even remotely as effective gaining the necessary focused attention.