I would say that the US/EU plugs which are symmetric are more resilient than AU plug: with AU plug, an electrician can connect wires the wrong way, yet with EU/US plug there is no wrong way: devices handle either polarity because the sockets and plugs are symmetric.<p>US plug has a drawback that there could be a live connection with exposed prongs, similar to two pronged EU plugs: both apply with flat sockets (eg. you may touch the exposed pins).
The example is not a poka yoke.<p>A poka yoke is an implement that prevents or calls attention to an error state. It's shaping objects so that they can only be inserted a certain way, it's a flexible barrier that bumps against tall vehicles before they hit the tunnel entrance.<p>An enum is not that, I think.
TBH, this doesn't sound more useful than saying "make mistakes impossible".<p>No surprise it hasn't caught up outside Japan like "kanban", "lean", "stop-the-line" etc have.