It feels pointless to try and rip original games for use in RA. Set developers are very arbitrary in what ROM they end up developing for, and back when I used RA, I felt like I had to manually look up each potential game I wanted to play to see what version they wanted. There are vague guidelines, but zero site enforcement, for what ROMs are supposed to be used for set development.

Sometimes they develop for a PAL region because PAL releases often have multi language support. Other times NSTC/J releases were preferred for having less glitches, or glitches that they consider fun and fundamental to the proper experience of the game. Same reason is used for developing/only using specific revisions of a game. And then sometimes they just end up making RA specific patched versions. Maybe the base game has a completion tracker that isn’t actually completable, so instead of treating the original bugged value as the true 100% in the vanilla game, they force you to use a modded copy. Or perhaps the the game has a exploitable glitch that makes achievement creation pointless, since you could always “cheat” them. So they mod/patch the glitch out instead of adding a glitch check into the achievement completion logic.