I keep seeing people say this, but there are no "others," there's no "everyone else."
To do anything with Stormblood you have to be caught up on hundreds of main story quests from the original game and Heavensward. The only people who are getting Stormblood at all are people who are looking to jump into that content, and thus they all pre-ordered it. All pre-orders come with "early access." There may be a small number of people who quit while close to finishing Heavensward, or who will pay an additional $50 to be ready, but again the vast majority of even that group will have pre-ordered. People simply do not go to stores on the day an expansion for an MMO comes out to buy it.
This is nothing like a new game, and even though they're calling it "early access," it's undoubtedly the largest group of people coming in today, not on the 20th.
