Except nobody is asking for perfection here. Every time these disasters happen, people reflexively respond to any hint of oversight with stuff like this. And yet, the cockups are always hilariously bad. It's not "oh, we found a 34-step buffer overflow that happens once every century, it's "we pushed an untested update to eight million computers lol oops". If folks are afraid that we can't prevent THAT, then please tell me what software they've worked on so I can never use it ever.