The Sims TeamThat is some ridiculous policy, but thank you for clearing that up
You probably bought an upgrade: https://www.origin.com/usa/en-us/store/star-wars/star-wars-battlefront-2/addon/star-wars-battlefront-ii-celebration-edition-upgrade
In this case you can see it supports many languages including English, it means that the language of this upgrade depends on the language of your base game(Standard Edition).
Another case, if you bought Celebration Edition as game, not as upgrade, the store page clearly says that the game has supported languages: Русский язык This applies to the standard edition and celebration edition: https://www.origin.com/usa/en-us/store/star-wars/star-wars-battlefront-2#store-page-section-overview
