Quote Originally Posted by TessaAttwood View Post
This was under the reasonable assumption that, because the event was tied to the new RPG release, the event would not happen again and it would be impossible to complete the set. Now I could, but I can't obtain the first 2 armor pieces again...
This is a perfectly reasonable assumption. The devs said multiple times that they had no plans to do the Lightning Event again, so it was completely rational to throw away your set. Now, not only did they release it again, but added more value to the Lightning set by making it dyeable, yet people like us can't get it because we're locked out of the quest.