Of course tradition has no real merit on its own, but studying the same linguistic tradition is what enables two people to communicate by using language. Unless you manage to complete John Wilkins's project, perhaps, and eliminate the arbitrariness of Wilkins's decisions.
However, in this conversation, we are speaking English, whose words owe their meaning entirely to tradition.
And the word "word" used to mean "to speak", as in make a sound. The word "merit" likely meant "to assign". Current day meaning matters a lot more than what something used to be.