That's because those 2 million people left when the developers started catering to a small minority. Then Bioware Austin started getting canned after their poor design choices. Even the Bioware Doctors have resigned in shame. 200 million dollars they advertised to the casuals and WoW Crowd and what happened.....they decided last minute to cater and have events to the most undesirable type of people in the MMO world. The Hardcore Minority
Most of the updates were dedicated to raiding content by adding more operations, flashpoints and the group finder. I hope that going forward they decide to add content for everyone, like events and more storylines like the one to get HK51.