If I understand it correctly, the source of the problem is dryfiring or decocking without the magazine in place (dryfiring without a snap cap could also be part of the issue). Apparently, the magazine supports the problem part. When you dryfire it without the magazine in place, it's not good. IMO, this is a poor design and should have been caught in R&D. None of us like paying $400-500 to be beta testers. When are gun companies going to realize that?
Got a new design? Spend the time to run a random sample (half a dozen or so) through their paces and pay attention to what crops up. I'd say 30k-40k rounds should be about right.