It took a second for the penny to drop with me, that this was the end of the DLC, the end of ME3, the end of Shepard's story, and likely the last time we'll see this great group of characters. Although narratively this doesn't go at the end (although you can make it so if you really want), emotionally it IS the end. Lump-in-the-throat time with that scene when that dawned on me.
Take my hat off to BW for this DLC - prior to it, I thought the ending made the game practically irretrievable, for me at least. The Citadel content though reminds me of what BW is capable of when it brings its A-game to the table, and gives you a great chance to draw an emotional close to the series that the game's ending didn't actually give me.