Soviets and Arnold Schwarzenegger's childhood

It seems that somebody from Slate is picking on Arnold's speech, after doing a little fact-checking about his claim to have experienced communism first-hand as a child in Austria.

The historians Slate consulted point out that Arnold lived too far from the Soviet border to have seen any Soviets, much less be intimidated by them. But the speech doesn't say this was an everyday occurence. Why isn't it possible that he remembers this from, say, a family trip visiting relatives or something?