It's a shame that things like having those characters are seen as only being sensible at an event like that, when the audience is guaranteed to be more hardcore Disney fans than the average guest. I can see the logic, no kid from Brazil is going to recognise Launchpad etc., but it's still a shame.
Nostalgia is big business right now, and Disney have really missed a trick on the Disney Afternoon front. They should have been going mad for Duck Tales and Rescue Rangers about five years ago, but although 90s nostalgia is still big, that ship is close to sailing.
If they did a 'childhood heroes' event with all the Disney things from different generations that people liked when they were kids that didn't really go on - they'd make a fortune. So you could have Mouseketeers, Disney Afternoon characters, old Playhouse Disney characters etc. Throw in MGM's old Power Rangers and Ninja Turtles characters and it'd be a sell-out!