Unfortunately I think he is talking about exposing the Japanese gamers to popular games outside of Japan more than exposing the Japanese gaming scene to the world. It seems like he wants to take popular games there were previously never thought to have a market in Japan and making a market for them. At the end of the day, the only benefit I see out of this is they will get a better idea of how the two cultures differ and get a better understanding of why or why not a game is successful. I don't see NA/EU gamers benefiting from this much (in terms of games that SE will release)
That seems to be part of it. I think he was also suggesting that previously, SE has focused their development attention on what they felt would appeal to the Japanese market and then shipping worldwide as sort of an afterthought. From that interview, it sounds to me more like they're broadening their approach. In a sense, that isn't necessarily a good thing. One of the things that always drew me to the FF series, for example, was the heavily Japanese-inspired story lines. Not so much with the earlier FF games, but by the time you get to around VII there's an element to them that is both very subtle and very powerful. It wouldn't bother me to see them take a more global approach to the gameplay aspects of their games and preserve the backstory/lore elements.