I don't think anything official's been said about the PERS, I think just speculations because of his face being swappable.
As far as how PERS works, I think it's been find since the Joker, and him being the first figure, it's understandable for it to not work so good on that one, it was already better by DX Batman.
As far as how PERS works, I think it's been find since the Joker, and him being the first figure, it's understandable for it to not work so good on that one, it was already better by DX Batman.