Log in Via web vs. launcher

For people who use a single account most of the time the website launcher is more ideal because when they logout they don't have to input their ID and password, instead they end up at world select and only input their PIC.
However, for people who regularly switch between more than one account while they play, the old launching method is more ideal because they don't have to close the game, relog on the website, and launch the game again. Instead, when they log out they're taken to the old login screen (in-game) and just input their info to their alternate account there without having to relaunch the game.

Then I must be one of few who only use the client and use only one account.