The questions raised was "better," not "easier to learn." In absence of everything else, being easy to learn is a point in favor of natural language--but the in

The questions raised was "better," not "easier to learn." In absence of everything else, being easy to learn is a point in favor of natural language--but the inefficiencies, ambiguities, and probable weakness of using natural language are big marks against it. Checkers is easier to learn than chess, but has fewer players.