Borderlands was region locked close to release date, RU only could play with RU, and even some of the surronding countries were stuck with it (some of which don't have a huge russian speaking populace). This had something to do with the RU publisher. It was removed shortly after the bruhaha came to light and sites like RPS were reporting on it, and now if you buy a RU copy you get the regular version of the game as well.

Keep in mind, XCOM isn't even out in Europe/Russia yet, so while it seems like they're doing it post release to you, it isn't so much for them. There's always a chance this is, again, something to do with the RU publishing rights and that 2k will work to correct it.