The Sisterhood of the Traveling Halter Tops

Is this pattern magical? It says ONE SIZE, but please note: it does not say, "One size fits all", or "One top to rule them all", it just states: ONE SIZE.

At first I wondered, maybe it has additional pattern pieces included, because I know from living in the material world that not all women are the same ONE SIZE, no matter what clothing manufacturers and fashion magazines might think.

But no. There is ONE MAJOR PATTERN PIECE in ONE SIZE.
Then I realized that this must be from Simplicity's "Sisterhood of the Traveling Pants" Collection.
It's for stretch knits only.Magical stretch knits.
Imagine the practicality of having a pattern that truly was ONE SIZE - whatever size you were.
My guess is that this was left accidentally from a person from a parallel universe where either everyone is ONE SIZE or their patterns magically fit everyone.