User blog comment:TW6464/Reckoning DLC Leak. Via REDDIT/@comment-4835791-20130131085440/@comment-109.158.100.72-20130131184321

@LilyheartsLiara - I'll think you'll find the vast majority of Mass Effect players don't participate in Multiplayer, Mass Effect for most people is a single player RP game.

To BioWare, or more importantly EA, Multiplayer content is the easiest way to squeeze more money out of the game. It's considerably cheaper and easier to produce than single player content.