I think that what Bioware meant (or at least how it came out) about the whole "tailor made, loose-end-tying, expansive ending" was just the way each storyline resolved during the playing of ME3. There is a LOT of continuity with that and I was satisfied with how things went with the Krogan/Turian/Salarian conflict, the Geth/Quarian situation, the Rachni, each of your previous companions, etc. When you think of it that way, they delivered what they promised, just during gameplay instead of at the very end.
Still want a couple explanations though, cos a few things don't make no goddamned sense:
Oh well. We'll see how they handle the issue with future patches/DLC. I still have faith.