0.5 gear swap

I noticed on the horde 0.5 quest giver (Mokvar) has vendor option that says:

“Mistakes were made. Maybe you could sell me replacements?”

I’m not sure if this has always been an option in classic or if this is a new feature. But what I’ve noticed there is only wrists/bracers being sold. If you have completed the gloves/belt part of the quest, they are not available.

Does anybody know if there is another NPC that can exchange dps/healer/tank 0.5 items? Or if its intended to have other set items available and its just an oversight by blizzard?

new feature because some pieces were giving Era 0 sets and not SoD so they couldnt be turned in for the .5 quests