There are also a lot of opportunities for hurt guest feelings by kids not chosen for Jedi Training, or Capt Jack's Tutorial. There are opportunities for hurt guest feelings if you get to the character line too late and they tell you that you cannot now get in the line because the Character has to leave soon. You might get your feelings hurt by not being chosen to talk to Crush or to have your joke told at Monsters Inc. Laugh Floor. You might feel badly if you don't get chosen to dance during Block Party Bash or for a show stop in the Celebrate You! parade. There are opportunities for hurt guest feelings by families not chosen for "Opening Family" or grand marshall or by people wearing Birthday Buttons who spend the entire day without anyone giving them anything special. Last year, there were hurt guest feelings because people didn't win a prize for YOMD.
Point taken, however, those things you listed are pretty much chance, right place right time, only some many spots,and so on. My point was that ones not chosen for AI are because they are not good enough, or plain bad, and you're told by a Disney CM as much.
I love all the comments and have changed my original opinion from AI being "a very bad idea" to and idea that raises concerns. And of course that could be applied to almost anything Disney does.
What I did like about auditioning was that when the audition shows from the real AI were on last month I would continually say during the show, "Well, as someone who has auditioned for the show, I can tell you how they feel!!"