That means the title of Tarashihiko originated in the early seventh century and the titles of the 12th, 13th and 14th were made in later days, and therefore, the existence of the Emperor Seimu is being questioned.
このことから、タラシヒコの称号は7世紀前半のものであり、12,13,14代の称号は後世の造作ということになり、成務天皇の実在性には疑問が出されている。