Hi Deacon
Unfortunately .... Yes. It is considered a bit of dumb move to attack your SA with a hammer. Not that you did it. At some point in time a fired case STUCK in a chamber. Why is immaterial. The fix of the moment was of course, to hit the ejector with some form of Hammer. Or, as I watched one clown, slam the ejector into the edge of a table. Never entered their weak and idiot minds to pull the cylinder and punch the case out. Being a Gunplumber, you get to see all sorts of really stupid things.
The part may or may not break. My suggestion, since the OEM Nickel Plate item is slightly damaged, is to just live with it. Or, perhaps source a new undamaged ejector rod, have it Nickel Plate and substitute.