I am not sure that I agree with this argument.
I have never been interested in WoW and I never will be. However, I really enjoyed SC and I plan on buying a copy of SCII, as well. So why would Blizzard want to refuse my $60 when I am not one of the people who pays them $12/month?
On the other hand, if your argument is that WoW players will, all of a sudden, stop playing WoW and stop paying their monthly fees so they can play SCII, I don't think it will happen. Not if we are talking about players that have played WoW for long time and invested all that money and time into the game.

In my opinion, saying that Blizzard is not interested in releasing SCII so they can keep milking WoW is the same as saying that Blizzard is not interested in more of your money for SCII until they can't make any more money from WoW, which is just not true.

It is actually rather funny how many people agree with you and how many people think that lawsuits like this one are a joke on the judicial system.

However, parents nowadays need to have someone to blame, at all times, for their own failures and for things that they should have done. It doesn't matter why they did not do it, whether it is laziness, ignorance, or plain stupidity those people don't deserve to have kids and furthermore, their kids don't deserve their parents.

With that said, the fault for such lawsuits does not lay entirely with the parents. If we had more judges and/or juries who looked at things like this and realized that they are a joke, it would be a different story. Image that you sue someone for something stupid like this. You go to court, the judge looks at you, looks at the case, and prompty throws you out with a swift kick in the ass. Now, how many more other people will try to follow in your footsteps?

That is just my opinion, I could be wrong!