The assertion that Shaolin being external means "outside of China" arises in the 16th century. Can you date it earlier than that, Sal Canzonieri? The Bodhidharma myth arises around the same period and Bodhidharma is the one that is commonly attributed as the external figure that brought Indian influence into China. Since Bodhidharma is a myth, the Kalaripayattu connection falls apart too.