Quote Originally Posted by MagicPeanut View Post
And I'm literally taking nothing away from anyone. Literally nothing.
Every change made to the game comes at the cost of a change not made, because the developers have finite resources.

This is an MMO and that's what all the subscribers signed up for and what most of them want.
Accordingly, investing developer resources to eliminate the multi-player part seems a poor investment, compared to everything else the developers could do with those resources (like, for example, develop more content).