I think it's quite possibly a problem on both sides of the issue tbh.. I personally like the yogscast and find them amusing, but you know, hey, maybe they said something that people thought was inappropriate? Maybe they are a little egotistical? Who knows. They really don't seem the type from watching their videos, but idk.
..Then there's notch. >_> I've never been particularly impressed with him, and the interview the yogcast did with him certainly didn't help my perception of him at all. Releasing bits and pieces of the story on twitter certainly isn't helping anything either.
It's probably just a big misunderstanding from some really tired people, or a giant troll from notch.. sigh.