Afaik Killian and Eristoff were kicked out of Drink for cheating(?) long ago, but still continue to use the clantag and call themselves "Drink Bros". That's also the reason why Kir and Scotch sign up as "Anti-Drink Bros" every 2v2 tourney. I think most of the community is actually aware of that though
I don't get why Hans is claiming that the DrinkBros were trashtalking though. The only guy trashtalking in that chatlog is NoLuckyStrike. Premature ggs and the like are really just a standard way to make fun of bad mannered players.