I understand what it looks like, but we have the guns from those incidents, and no one has looked at them an pointed to a defect, or reproduced them firing without the trigger being actuated.
A gun in a holster can fire when it is moved and the holster is poorly fit, incorrectly configured, or there anything caught in it like tail of a shirt, drawstring. Also, many police have a flashlight on their pistol, which opens up space quite a bit making it easier for things to get caught inside.
Whether it’s an explicit design flaw that allows the gun to fire with no interaction with the trigger at all, or one where the gun is prone to fire unintended when circumstances are less that ideal, and an interaction that shouldn’t cause it to fire does. Who cares. It’s perfectly reasonable for law enforcement and the military to want a higher level of safety than what is apparently possible with this handgun.
A gun in a holster can fire when it is moved and the holster is poorly fit, incorrectly configured, or there anything caught in it like tail of a shirt, drawstring. Also, many police have a flashlight on their pistol, which opens up space quite a bit making it easier for things to get caught inside.