I know it. In my opinion these Pokémon are hacked 'cause their PIDs are static. I think they should have a dynamic PID, so these Wondercards don't behave as the originals. You know what i'm saying.That's reddit, not here. Local events are not region locked this generation and can be claimed on all NA/EU/JPN 3DS and carts, so injected local events would be a hacked Wondercard and a "legal" Pokemon so long as the Pokemon itself is not edited.
Not that I personally agree with injected Wondercards being allowed to be traded, but they are, so long as it's stated. Here.