Been down this road - youtube has video of XDM owner who broke his and had to drive it out. My pin did start to work its way out a slight bit after 500 rds. I did not dry fire much at that time.
A FTF member did point out the manual recommends snap caps. Since I switched to snap caps, no problems.
But I DO agree this issue should have been fixed before leaving the factory.
With little to no maintenance, I've put approx 900 rds and either I've improved or the pistol is shooting better.
Little worried about the rusting issue. XD site - these pistols were not mistreated and were wiped down before being put away in their case. People began to research the properties of the padding etc. (some of the pistols were even SS). No definitive answer was found.