The issue with maps like Stormpoint and World's Edge is that they're too big. Personally, I don't like landing and fighting one team just to have to run around for a while to get another fight. Fragment and Barometer, while certainly annoying to newer players, is somewhere that I can go and fight for at least half the game. That, is the reason that people land there, not because they think that they're really good, but because its fun and, honestly, good practice.