It still doesn't make sense. Game of Thrones is actually chock full of exceptionally consistent and believable characters, and plenty of the mundane and ordinary quite apart from EPIC-ness. And again, there are plenty of 'powergamers' who must be GoT fans, same with casual gamers, and plenty of the personalities he describes who aren't fans of the series at all. It's just not a very strong correlation and it's coming off as a negative stereotype. Whether qualified with "addicts" or no.
I think what he meant was people who try to make battlemaster into Game of Thrones regardless of the situation. Game of Thrones is a great drama, but that kind of drama doesn't fit in some circumstances to people. I appreciate the kind of pot-stirring it creates, but I can understand that it may throw off some other people's game when you play an overly hot-headed brute or an unexpected wily backstabber. I like it, but I think it pisses people off. Once the player is pissed off it all devolves into OOC bitterness.
Big dramas tends to create a lot of friction. Some of the best rivalries I've seen have caused people to delete characters and come to the forums to engage in flame wars. It saddens me that things get overheated between players rather than festering as bitter hatred between characters. There have been several times that I wish two players could message each other and say "Hey, I'd like x character to dick x character over as hard as possible, why don't we work together to create a rivalry for the ages?". Then again, some people don't play that way...and forcing it upon them just makes them mad.
You have to find people that will reciprocate what you want out of the game. I think that is the biggest issue with Battlemaster. The locality of interaction forces you to deal with people, but sometimes those people aren't the ideal people you would want for that kind of interaction. Rather than search for greener pastures, people try to force things with people who don't want it. It makes for great stories...but pissy players.