I think the whole “this scene from this film wasn’t like it was previously planned” argument is not very good.
Making an animated film is really really HARD. You don’t just write something. It requires producers, directors, ideas that are gonna be greenlit or not, writers, concept artists, character designers, background designers, creative decisions, corporate decisions, storyboard artists, animators, animation tools, editing tools, sound effects, voice actors, composers, editors, budget. It’s a whole can of possible problems.
Film is a product of its time and conditions. All the conditions the animators had when they made it, constraints of money, constraints of time and everything else, created that original film.