The world is a changing place. I think the benifits could far outweigh the small risk you refer to. Who knows.. by the time our child grows up there may be a draft in the US or EU and military conscription abolished in RU. I was born in the early 60's with the world at the brink of total destruction, assasinations and the rising Iron Curtain. I could imagine marrying a RW was not so popular back then and look at what's possible and acceptable today..
I have benefited from dual US/EU citizenship and passed this on to our child that in addition has RU citizenship. Sharing language, culture and yes citizenship with the next generation is important imho. Why burn bridges when they are so easily built at an early age?
I suppose there are advantages to dual or multiple citizenships, but the small risk you refer to does not seem so small when you come as close to being drafted as I was when I turned 18. I reached that magical age in 1975, one week before the draft was abolished and three weeks after Saigon fell to the NVA. My draft lottery number that year was 8. In other words, I was next.
I will do whatever it takes to protect a son I might have in the future from the next Russian military adventure in Chechnyea or wherever or from Bush's next oil war in Iraq or whatever country he wants to conquer next.
Besides, multiple citizenships do not protect a young man from military conscription in any of the relevant jurisdictions. It only exposed him to multiples of such risks.