It’s the difference between Storyforming and Storyweaving.
The Storyform gives you A - B - C - D
You Storyweave D - A - C - B (think Memento)
At the end of it all, the Audience can unweave the story and know that the internal logic was A - B - C - D.
If you don’t make clear that B came before C, then they might confuse the second half of your Storyweaved version with the truth and the internal and emotional progression of the argument will feel false and read as illogical.