Yea, a German scumbag would change history thusly. The name "Rus" was first recorded in writting by officials of the Eastern Roman Empire/Byzantium as Kievian Rus. They were the founders of today's Russians and of the ones that gave Russia their conversion to Christianity.
The Rus state moved north when the Mongols invaded. The Russian re-liberated their lands after they defeated the Mongols and Lith-Poles.
That German linked article is - dare I say Nazi-ish - revisionist history!