Of course it was. It's to give the player a choice on whether they believed she was right an ending (really the only players who did are RP'ing anyway).
But that's where it logically has to end otherwise how do you branch into the next expansion if you're on her side? You can't raid with the loyalists and raiding your own side is somewhat pointless. The story ends there because it has to for you to have any sort of ability to play the next expansion or you can sit in jail. Or I guess Blizzard can give you a job as a raid boss and when you die, your account gets suspended for a weekThen you can say your choice mattered,