The fierce general Li Ching of the Tang dynasty going back to the Shang dynasty and acquiring a son with the very un-Chinese name of Nacha (which comes in fact from the Indian) sounds as absurd as having a battle to the death between Chang Fei (of the Three Kingdoms period) and Yueh Fei (of the Sung dynasty).
唐朝猛將李靖，不但回到商朝，且又添了個洋名小孩「哪吒」，聽起來似乎是「張飛殺岳飛，殺得滿天飛」的一筆糊塗帳。