Germany will not be a major power again; agreed. At least not in the near future. And they won't rattle any sabers; the Russians aren't worried about that because the German saber-ratting gene was purged from the German gene pool on the road from Stalingrad to Berlin.
This is just a case of the Russkies wanting some western technology, just like the EU is selling to China. I'd rather think that Russia is keeping an eye over it's shoulder to the east rather than looking west.
Well considering that China has a way of gaining most Western tech through duel purpose transfers and purchases or out and out theft (MERV tech), all their neighbors need to be scared.