I think all he meant was

"we are going to keep making large titles like GTA because we think they are cool and we also think we can continue to make money off them. A lot of developers want to talk about casual games and that market, and I don't want to sit here and talk about exploring that market because that is not what I am going to be doing"

He didn't say "casual games are bad, stupid, I don't like casual games, and make no business sense"