Not exactly. Gun plus belt falling on the back of the slide = extra weight, harder impact. Maybe at the inopportune angle. Gun falls and hits on the soft holster and the soft leather absorbs some impact before the gun gets its jolt. So the inertia has different effects. But I'm not one to start telling holster makers that the holster is the solution! The gun should not go off when dropped.

Either the gun went off when dropped or the victim is lying. Yes lying. I'm not accusing this person, but in my town two cops told a whopper that broke down and eventually turned into "poor gun handling and one guy shot his partner."