If he is a libertarian that perspective is more modern than socialism, technocracy, or pretty much any other political ideology. Modern libertarianism is from the mid 20th century.

And if you share the view that societies gradually shift from materialist values (economic stability, physical safety, law and order, and maintaining traditional group norms) towards post-materialist values (individual autonomy, freedom of speech, gender equality, environmental protection, and self-expression) as societies develop, then freedom of exchange is something you would expect from a more advanced perspective, not one which is outdated. What is outdated is authoritarian, statist, and technocratic rule.