I'm honestly happy someone who clearly loves the game and it's lore took the time to weave together such a challenging and rewarding story arc entirely as a self taught volunteer. This arc was on the beta server for many weeks getting tested, it's content revised, and it's scripts edited based on the input from many players. So comparing it to any content made by the legacy paid professional developers is a little unfair.
That being said, I like the way this arc progresses, the Easter eggs it contains both in its dialog and its game mechanics, and the challenges that pop up throughout.
So while I don't agree with your critique, I'm happy you care enough about the game and this content to give your two cents.