Russian was a hot study in 1960 and after. I had friends studying it in the early sixties. It was right after sputnik and was a pretty novel and new major in college. Studying Russian doesn’t make a communist in my experience.
I don't think that this is coincidence.
The article could have gotten it wrong accidentally and stated that he was 3 years old in 1967 when it should have stated that he was older.
Again the forged birth certificate says that he was born in 1961. That is a 3 year difference whether he was born in 1961 or 1964. This isn't a one year dating difference that we are talking about.
I don't think it was an accident that there is a 3 year difference in the reported birth year and a 3 year difference in the age that his mother may have needed to be for Obama to be eligible.
I believe people lied intentionally.