Here's the thing...
Yeah he got world first, that's awesome. DeeJ is right, first is first.
But maybe he forgot he has a community to build after this. People will forget world first in a month, if not sooner, but they won't forget the attitude shown to other streamers. The Destiny Twitch community is pretty tight-knit and he won't make any allies pulling that crap. Goth had more than 40k viewers today, and he'll continue drawing 6k+ on a bad day. He's built his community over two or three years and has paid his dues.
This other guy is burning bridges he can't afford to burn.