The issue is not the existence of a firing pin block safety, many pistols still don't have that. But they do at least have inertial firing pins. You need one or the other to carry hammer down on a chambered round without a manual firing pin block.
So Joe Gunguy goes to the dealer and buys a Mak ("Hey, it's a Walther copy, but alot cheaper!") and decides to carry it like a Walther or any other DA pistol, trusting that hammer down means safe (or safe enough). What happens when that guys gun falls out of the holster, or out of his hand, or he raps the back of the hammer on a table, or he stumbles into something hard without a flap holster.
People here are always going off about "If you use proper gun handling skills" and all that, but if you're not fully aware of the dangers inherit in a guns basic design, because no western manufactorer would build a pistol that way, you're not going to be able to guard against it's flaws. And even if you are aware, does that guard you against the unexpected.
Every combat handgun I own can be dropped at any point in it's use and not go off.
I'm curious if every Mak owner here on TFL was completely aware of this design and it's proper handling.