I think the overarching issue is that phrase “make one fire”. Not from you
@HayesGreener, but may of the P320 defenders use that same phrase. I have always maintained it (the discharges, no matter how they’re defined) were due to excessive knocks and bumps while being carried in holsters, infrequently removed from those holsters, and almost never reset like done by those whose “carry” and are not LE, where those using for EDC generally unload/reload daily or every day or two, and reset the striker. After enough bumps/bangs/whacks, with zero striker resets, striker eventually does things resulting in a discharge.
Any striker fired gun I carry gets unloaded and reloaded before I carry it because I prefer to know the striker is in its fully reset position. Just has always seemed a prudent thing to do. And yes, I do alternate my top magazine rounds and fire off my carry ammo regularly.