When I reread my own 2 posts in this thread I must honestly say I WAS in a very BAD mood when writing all that about Hall of Echoes, Wastelands ... "the point of NO return" ...
Now I understand it all better (I believe) : it is PART OF the Main Storyline .
And after the relaese of Flames of Vengeance all sad feelings about "point of no return" with Hall of Echoes melt like snow in the sun, immediately !