EA didn't "wipe" the ranks. It just wasn't processed, same for the ranked whitesmiths and TKs. The list didn't generate over from Aegis serverside, but everyone who was ranked still had rank, just had to make a pot/weapon/do a mission for it to show up on the list. Therefore, if the "insert class here" hadn't done that, and someone else did, they showed up on their respective list. Once everyone who was ranked made something, it showed and replaced the others.