Well it makes sense o_0
Don't accept the new terms of service? You get no service. Should be no surprise there.
I.e: The tactics Steam is using to get people to accept is not unfair, but rather it is a fact that you've known all along (licenses are purchased to use the game via steam and not independantly) that is unfair. So thus you have no right to complain about steam anymore than you did a year ago.