This is a very unfortunate incident for the parties involved and their families. It probably will also impact many people who are involved in competitive handgun shooting. I'm not looking to cramp anybody's style or ban anything, but I hope it does lead to some additional safety measures at competitions. Although this is the first fatal incident I have heard of or read about, I have read previously about a CZ Shadow or Shadow 2 (don't recall which) having an accidental discharge while holstered due to the hammer being bumped, and maybe some combination of mods like an extended firing pin and reduced power rebound spring.
A couple of days ago, when I first read this thread, I was explaining it to my wife and one of my sons who were in the room at the time. As I explained to them, I personally don't own a handgun that doesn't have some kind of active drop safety. That's one of the reasons I prefer my Sig P290RS for pocket carry over several of the other DAO pocket .380's on the market. The S&W BG380 has one but several of the others don't, relying instead on the passive inertia safety of a lightweight firing pin vs. the rebound spring. That includes the Seecamp, NAA Guardian, Remington RM380, Beretta Pico, etc.
For concealed carry or home defense, I want a gun I can throw off a tall building or wreck a motorcycle with and not worry about accidental discharge. At least not if it's holstered and the holster survives the impact. I don't jump off of buildings or ride motorcycles, but still. Maybe I'm paranoid and overthinking this? Maybe. Anyway, I explained to my family that many modern handguns designed for self-defense or duty have some kind of drop safety, including all the ones I currently own, but the CZ Shadow was a gun meant for competition... and that this incident happened at a competition.
Not too long ago, there was a thread here asking for input on selecting a handgun for range shooting and also home defense, like a nightstand gun with a light mounted on it. Several people were recommending a Shadow 2 for the job. I remember one particular post where someone had set up their Shadow 2 for the task "because why not?". Well, here's your answer, as to "why not". In a close quarters gunfight in a house, when it's dark, your adrenaline is dumping, maybe you're grappling with an intruder, your family also in there with you... do you really want a gun that will go off if dropped or bumped the wrong way? No thanks.