Cool! I think they are making those codes coz of Cyber Gadget, TONS of email request, and X Y is getting old now because of ORAS release.
I don't think the main reason is because of Cyber Gadget. I think it was intentionally left till this late to release the codes. I still prefer Powersaves over my Cyber Gadget. Mainly because I don't have to do anything. I can simply just choose the codes I want applied to my game and *voila* Powersaves applies them for me.