Ofc i understand that they have the law on there side but i think more outside the box then you. The ppl want servers with the expantions but blizzard dont wanna do that becouse they wouldent make alot off money on it and nothing else.
And as i said sure they have the law on their side becouse they are the owners but private servers and streams are fans that wanna help blizzard to sence they love the game but not just the retail for alot off stuff.