If their AIs were different, they wouldnt COPY each others moves right after another, dude
Actually to be fair, if one WAS just copying the other, one would be the gist of "receive input" and the other would be "copy the other guy", which would still be two
different AI's.
And I'm pretty sure he meant that Nana and Popo are
separate files. "pra_mai" is only one, hinting heavily that it's only one character, and therefore, can't be Plusle/Minun.
Of course, all of this is just speculation and nobody knows for sure. *shrug*
DISCLAIMER: Just saying things people are speculating about the file. I don't give a single **** about the issue so I'm not the person anyone should be arguing with on the matter, haha.