No, that's not a mistake, unless it was an error during writing. The train run by Chiyo-Chichi on which Maya and Tadakichi-san arrive in the middle-late part of the story is explicitly identified in-story as the Starlight Express.
-- Bob
I have been Roland, Beowulf, Achilles, Gilgamesh, Clark Kent, Mary Sue, DJ Croft, Skysaber. I have been
called a hundred names and will be called a thousand more before the sun grows dim and cold....
I have been Roland, Beowulf, Achilles, Gilgamesh, Clark Kent, Mary Sue, DJ Croft, Skysaber. I have been
called a hundred names and will be called a thousand more before the sun grows dim and cold....