I don't have much say but, I think somewhere (maybe in the formatting guide? idk) it should be made clear that, in terms of content, if something applies in Gen 4 and in Gen 5, it is okay to use it. But not be taken word-by-word. You have to write it up in your own words. I can't remember who it was, I think Gen. And he said it well, if lets say a set from gen 4 still applies, feel free to use it, but the description and everything has to be yours.
Also just to clarify, I just pushed the B/W Doubles through GP so I'm not at fault :3