I've had several machines that were missing the pins, and one with a bent one. Looked like they dropped the machine on it's side and the spool pin got bent too. I was able to straighten that one. Never had a broken one. I can't imagine what they did to break it off.
And what Dan said about being very careful with the E-Z Out is absolutely true. They are very hard. And the small ones like you'll need are very easy to break.
It probably won't take much effort to back the stump out but be careful.
Joe