>>44910948Tickets are framed as gifts mailed to you through a delivery service, often with the justification that you're the champion in the postgame. One of the best examples is Oak's Letter which is literally a letter addressed to the player in order to initiate the Shaymin event.
Being locked out of events past their distribution date sucks, but you know what was nice? The eon ticket event. You can still access it today, it's not even that hard to get a hold of. Wish they did more events like that.