Yeah now I'm pissed again too. I don't want anything to do with DLC if there just going to play on the stupid choices they gave us.
Also the indoctrination theory goes out the window with the little clip of the man and the boy at the end that you get.
Whatever Shepard chooses, Synthesis, Control or Destory. All ends up well however far in the future that is. It doesn't matter what you pick so long as your EMS is high enough. You win, the Reapers lose. No matter what (barring your EMS being shit).
My interpretation of that post credit part isn't as literal as yours.