Lot of people who fly scenarios don't fly in MA afterward.
Even IF the numbers were down tonight. Doesn't mean people have Cx'd their accounts. Only true way to tell though would be from HTC, which will never be discussed. Bottom line is people come and go, regardless of the reason. This update is minimal compared to the AH2 release, and since then rumor is there's a LOT more people in the game.
You can't please everyone, we all know this, and HTC does what they can, which for some people just isn't enough it seems. At this point people have 3 options. Play with what they got, upgrade, or quit. Whatever the decision is, make it, and stop complaining about it. Threatening to "cancel my account" will definitely get you no where; fast.