Fair enough, but this is referring to a group of believers, not a nation. More akin to a monastic order than a country filled with atheists, agnostics, and members of various religion, ethnic, and cultural backgrounds. They had a common goal, and were on the same page spiritually. It's describing a group of believers, not an economic plan for a large, diverse country.
Unfortunately, with nations historically, socialism has been closely associated with atheism. Probably because such countries tend to demand loyalty to the state, or the ruling party, as opposed to loyalty to God.