Lol, nobody can fire me
I don't have to work
That means I can be a pain in the ass 24/7 if I want
Trying to multi-client with a game that only allows one instance of itself to run is a pain. It can be done even on the same machine but not without jumping thru a bunch of VMWare/VMBox hoops.
But don't worry. Changing the client to support only one client per machine is a 1-line addition to the client code. Adding that line costs money and has no return on investment (TOI/payback). This game developer does nothing that has no immediate profit return. So those that want to cheat by multi-clienting into limited-access events like LMS can do it to their heart's content forever. PWI won't ever pay someone to block multi-clienting.