Notch and company showed weakness by immediately offering concessions, so Bethesda probably figures if they push harder they will drop Scrolls entirely. Which is probably true.
I'm just surprised there's no PR group talking with legal. This is a nightmare for Bethesda as Minecraft (and by extension Notch) has an extremely loyal and, dare I say, vocal following.
Win or lose Bethesda comes out looking like a evil group and probably will leave a sour taste in a few thousand gamer's mouths once it is all said and done.