I'm not terribly surprised. Submachine guns, being pure blow back firearms, are probably among the simplest to make with the most difficult component in the man

I'm not terribly surprised. Submachine guns, being pure blow back firearms, are probably among the simplest to make with the most difficult component in the manufacturing process being the barrel. Even the bolt would be relatively simple given its fixed firing pin, provided it's been appropriately heat-treated, and everything else is just a matter of springs, stamping (or pipes), or welding. I agree with you, though. "Danger-hyping" seems to ignore the fact that in nearly all cases, many of these weapons aren't new technologies. Modern techniques and tools may make it easier (or faster), and certainly new technologies (like drones) expose us to additional risks (but RC aircraft have been around for decades). It's a trade off we'll always face.