Yeah, but by their own admission, this isn't what they're working for. They're working on having X/S games compatible with future releases, not an effort to get OG XBox games working on the X/S.
Garak and Bashir and Kim and Lilly and T'Pol and Dax and Mariner were from alternate dimensions too. Doesn't mean DS9 First Contact, Enterprise, or Voyager only exists in alternate dimensions. This is just the writer's lazy excuse to whine about Discovery