I thought real events = infrared/(local) wireless download and Wi-Fi ones are like the previous Diancie, Shiny Rayquaza events? Which you don't have to attend a certain venue.
I thought the Hoopa one belongs to the infrared/wireless events, no?
EDIT: Like always I'm replying here since it's off-topic. No need to answer, simply expressing my thoughts. {XD}
FRLG and the DPt offered that sort of thing and funnily the said features were not appreciated by the fandom, at least most people found the feature annoying.
Since there's nothing much to do after the Delta Episode, other than hatching eggs and training. I guess that was why they aren't re-introduce in Gen V and Gen VI games.