I love Soviet National Anthem for various reason and I don't have typical American cold-war-styled viewpoint against Soviet, but I disagree.
1) Soviet National Anthem declared April 1944, in late phase of war.
2) 1944 version - It has ideological problem, cause it has too much "Stalin" in it. They made it when Stalin's power was at its height.
And I feel uncomfortable listening Stalin-worshiping anthem. Even now historical revisionists are causing trouble in Russia.
3) 1970s version - simply, it has not been used back then.
How about famous military marching songs like "Katyusha" or "The Red Army is the strongest"?
have been used by Soviet Army, and have no ideological problem.