If you open your birthday present and find a turd in a box, that is a problem. It really doesn't matter if you subsequently receive a lot of clarity and explanation about who gave you the turd, and why. You've still, after all possible exposition, got a turd in a box.
After the end of Mass Effect 3 is changed to something that makes sense and relates coherently to the rest of the trilogy's story, I'll be happy to pay attention to the clarifying explanation of how a talented team of game designers dropped a turd into the box, but until then the main focus should be the fact that we don't want the turd.
Also, Casey needs to be aware that if the "game content initiatives" amount to little more than a shiny coat of polish for the turd, they will not be well received. Again, the team needs to devote themselves to turd removal, before any other efforts have a chance of meeting a warm reception.