Any throwing weapon is best viewed as a distraction that you might get lucky with.
While you're ducking flying pointy things I can close and start smaking with the souvenier Dodger mini-bat.
I have heard that about throwing knives before, it seems more of a Hollywood thing. I reallyy want one of those souvenir bats, anyone want to donate one to ol' Moonclip?
Think about it, if you throw anything you no longer have the weapon.
You have a very finite chance of hitting with it based on distance, rotation, target area and more.
Besides, unless you get lucky and tag the carotid or something what is a throwing star going to do? Stab you with a 1/2 inch piece of metal? Whopee.
But your brain screams 'duck!!' and so we do.
They stopped handing out those bat a long time ago I seem to recall.