Hmm... There are a few reasons :)
Raptor was one of the first games to use Essentials, and it's the first game I've watched from the beginning until it was finished.
When it was finished, and I played it, I noticed how much effort had gone into it, but there were still some things about it that seemed unfinished. For example, several NPCs talked about the Torxia League, there was an incomplete map of it, but you couldn't go there.
And finally, it's fun :) Adding end-game features is something I've always wanted to do, but Amethyst is nowhere near that stage yet. It's fun coming up with challenges for the player of the game to face when they think they've already mastered it :P