People. It's a game. It's made by Japanese and run by Japanese. Why should they have servers anywhere else other than in Japan? Just in case an earthquake occurs in Japan so non-Japanese people can continue playing?
Sure, maybe it's a good idea simply because it's a WORLD played MMO, but for any other reasons. (Like keeping the game running due to special circumstances, that's just ridiculous.)
I am not upset at all that the servers are down. There was an 8.9 earthquake, followed by tsunamis and numerous aftershocks. It is perfectly understandable the servers are down, and I would prefer all of the Japanese people, and FFXIV staff go somewhere safe, instead of continue working so people can continue playing a game.