Gotcha, thanks for explaining.

@BigGoverment - While it's true one can change the language group for a new game, and in those cases, this patch isn't so much a requirement, as a convenience - it's not possible for an existing save.

So, if you were to add Rim Languages mid-game, the Syndicate language from Fractured Empire would be it's own main language, and dialect. This patch will make sure they share the same language and dialect.

Rimlanguages allows you change the dialect. I wouldn't imagine this patch is necessary if you just put Syndicate in the Shattered Empire's language group and dialect.