I own Eternity and crafted it myself. After armory, I would have to craft both precursor swords again for collection. I would only use the eternity skin anyways and just be nice to have Twilight/Sunrise for collection purposes. The tokens seems like guarding against an edge case meant for those with uncraftable/unsellable twilight/sunrise in their armory after the change. Only seems fair that the other case, those that already own Eternity, be considered as well in at least SOME regard.