This is simply splitting hair that is leading to never ending arguments that don't offer any meaningful information that will improve those things that most of us know already.
It's going through a senseless Moebius Loop.
Having one end of the parallel cords is no different from having an extension cord strung around in the house or in the backyard.
The live parts are recessed deep enough to be a hazard. You really have to poke inside with something like a hair pin to get shocked.
The way the parallel cords are constructed are far more safer because the live part is covered with a hood.
Again, someone with suicidal thoughts would really have to be creative to poke the prong inside.