Funny little consequence of making Rising Tide a prerequisite to Sedna Junction is that nobody’s going to see The Man In The Wall at the reliquary drive in the quest unless they replay it. That little teaser is no longer part of the new player experience.
Dang… I like the occasional hint and foreshadow. I think it was short enough that a new player wouldn’t get spoiled, rather they would think it is weird and then when they actually learn about it, they will look back and realize what it was.