I have no answer to this question, but rather an opinion...
Generally, when these kind of compilations are released, the studios just put out whatever they currently have on hand.
And on an additional note: Really surprised they released this announcement on a Sunday.
100 YEARS! 100 MOVIES!
DISNEY’S LEGACY OF STORYTELLING COMMEMORATED
WITH LAVISH LIMITED EDITION BLU-RAY COLLECTION
THE ULTIMATE ANIMATED FILM COLLECTION COMMEMORATING
100 YEARS! FEATURING A THREE-VOLUME SET OF 100 FILMS
FROM DISNEY AND PIXAR
BURBANK, CA (September 10, 2023) – The Walt...