Language addition

In the press notes for First Cow, Kelly Reichardt identifies a Native American language in the film as "the jargon called Chinuk Wawa—a global trade language rooted in Chinook."

Could this language, perhaps in the English form Chinook Jargon, be added to the language list?

https://en.wikipedia.org/wiki/Chinook_Jargon

https://www.britannica.com/topic/Chinook-Jargon

https://www.merriam-webster.com/dictionary/Chinook%20jargon

https://www.grandronde.org/services/education/chinuk-wawa-education-program/